diff --git a/QtGameMaker.pro b/QtGameMaker.pro
index b7ff665..2ee6515 100644
--- a/QtGameMaker.pro
+++ b/QtGameMaker.pro
@@ -36,9 +36,11 @@ HEADERS += \
     src/editor/dialogs/includedfilepropertiesdialog.h \
     src/editor/dialogs/transparentbackgroundsettingsdialog.h \
     src/editor/editorguiutils.h \
+    src/editor/editorsettings.h \
     src/editor/roomscene.h \
     src/editor/widgets/actiondragwidget.h \
     src/editor/widgets/coarsecolorwidget.h \
+    src/editor/widgets/colorbutton.h \
     src/editor/widgets/colorwidget.h \
     src/editor/widgets/draggabletreeview.h \
     src/editor/widgets/finecolorwidget.h \
@@ -111,9 +113,11 @@ SOURCES += \
     src/editor/dialogs/includedfilepropertiesdialog.cpp \
     src/editor/dialogs/transparentbackgroundsettingsdialog.cpp \
     src/editor/editorguiutils.cpp \
+    src/editor/editorsettings.cpp \
     src/editor/roomscene.cpp \
     src/editor/widgets/actiondragwidget.cpp \
     src/editor/widgets/coarsecolorwidget.cpp \
+    src/editor/widgets/colorbutton.cpp \
     src/editor/widgets/colorwidget.cpp \
     src/editor/widgets/draggabletreeview.cpp \
     src/editor/widgets/finecolorwidget.cpp \
diff --git a/src/editor/dialogs/backgroundpropertiesdialog.cpp b/src/editor/dialogs/backgroundpropertiesdialog.cpp
index 0ae3c8a..97fac2d 100644
--- a/src/editor/dialogs/backgroundpropertiesdialog.cpp
+++ b/src/editor/dialogs/backgroundpropertiesdialog.cpp
@@ -17,6 +17,7 @@ BackgroundPropertiesDialog::BackgroundPropertiesDialog(Background &background, P
     m_ui{std::make_unique<Ui::BackgroundPropertiesDialog>()},
     m_background{background},
     m_projectModel{projectModel},
+    m_mainWindow{mainWindow},
     m_pixmap{m_background.pixmap}
 {
     m_ui->setupUi(this);
@@ -129,7 +130,12 @@ void BackgroundPropertiesDialog::saveBackground()
 
 void BackgroundPropertiesDialog::editBackground()
 {
-    ImageEditorDialog dialog{m_pixmap, tr("Image Editor: %0").arg(m_background.name), this};
+    ImageEditorDialog dialog {
+        m_pixmap,
+        tr("Image Editor: %0").arg(m_background.name),
+        m_mainWindow.settings(),
+        this
+    };
     if (dialog.exec() == QDialog::Accepted)
     {
         m_pixmap = dialog.pixmap();
diff --git a/src/editor/dialogs/backgroundpropertiesdialog.h b/src/editor/dialogs/backgroundpropertiesdialog.h
index 6dd8b1f..c8bb7ca 100644
--- a/src/editor/dialogs/backgroundpropertiesdialog.h
+++ b/src/editor/dialogs/backgroundpropertiesdialog.h
@@ -38,6 +38,7 @@ private:
 
     Background &m_background;
     ProjectTreeModel &m_projectModel;
+    MainWindow &m_mainWindow;
 
     bool m_unsavedChanges{};
 
diff --git a/src/editor/dialogs/editspritedialog.cpp b/src/editor/dialogs/editspritedialog.cpp
index 9ce1dde..726548e 100644
--- a/src/editor/dialogs/editspritedialog.cpp
+++ b/src/editor/dialogs/editspritedialog.cpp
@@ -4,19 +4,19 @@
 #include <QMessageBox>
 #include <QDebug>
 
-#include "projectcontainer.h"
 #include "models/spritesmodel.h"
 #include "dialogs/transparentbackgroundsettingsdialog.h"
 #include "createspritedialog.h"
 #include "imageeditordialog.h"
 #include "imagehelpers.h"
 
-EditSpriteDialog::EditSpriteDialog(const std::vector<QPixmap> &pixmaps, const QString &spriteName, QWidget *parent) :
+EditSpriteDialog::EditSpriteDialog(const std::vector<QPixmap> &pixmaps, const QString &spriteName,
+                                   EditorSettings &settings, QWidget *parent) :
     QDialog{parent},
     m_ui{std::make_unique<Ui::EditSpriteDialog>()},
-    m_pixmaps{pixmaps},
+    m_settings{settings},
     m_spriteName{spriteName},
-    m_model{std::make_unique<SpritesModel>(m_pixmaps, this)}
+    m_model{std::make_unique<SpritesModel>(pixmaps, this)}
 {
     m_ui->setupUi(this);
 
@@ -138,6 +138,11 @@ void EditSpriteDialog::reject()
     }
 }
 
+const std::vector<QPixmap> &EditSpriteDialog::pixmaps() const
+{
+    return m_model->pixmaps();
+}
+
 void EditSpriteDialog::newSprite()
 {
     CreateSpriteDialog dialog{this};
@@ -146,9 +151,7 @@ void EditSpriteDialog::newSprite()
         QPixmap pixmap{dialog.spriteSize()};
         pixmap.fill(Qt::transparent);
 
-        m_model->beginResetModel();
-        m_pixmaps = std::vector<QPixmap> { std::move(pixmap) };
-        m_model->endResetModel();
+        m_model->setPixmaps({ std::move(pixmap) });
 
         changed();
     }
@@ -160,9 +163,7 @@ void EditSpriteDialog::createFromFile()
     if (pixmap.isNull())
         return;
 
-    m_model->beginResetModel();
-    m_pixmaps = std::vector<QPixmap> { std::move(pixmap) };
-    m_model->endResetModel();
+    m_model->setPixmaps({ std::move(pixmap) });
 
     changed();
 }
@@ -173,16 +174,14 @@ void EditSpriteDialog::addFromFile()
     if (pixmap.isNull())
         return;
 
-    if (!m_pixmaps.empty() && m_pixmaps.front().size() != pixmap.size())
+    if (!m_model->empty() && m_model->front().size() != pixmap.size())
     {
         QMessageBox::warning(this, tr("Not yet implemented"), tr("Not yet implemented"));
         return;
     }
     else
     {
-        m_model->beginInsertRows({}, m_pixmaps.size(), m_pixmaps.size());
-        m_pixmaps.emplace_back(std::move(pixmap));
-        m_model->endInsertRows();
+        m_model->insertPixmap(std::move(pixmap), m_model->size());
     }
 }
 
@@ -193,13 +192,13 @@ void EditSpriteDialog::saveAsPng()
         return;
 
     const int row = index.row();
-    if (row < 0 || size_t(row) >= m_pixmaps.size())
+    if (row < 0 || size_t(row) >= m_model->size())
     {
         qWarning() << "invalid row" << row;
         return;
     }
 
-    const auto &pixmap = m_pixmaps[row];
+    const auto &pixmap = m_model->pixmap(row);
     if (pixmap.isNull())
     {
         QMessageBox::warning(this, tr("Invalid sprite!"), tr("The sprite you tried to save is invalid!"));
@@ -256,17 +255,14 @@ void EditSpriteDialog::delete_()
         return;
 
     const int row = index.row();
-    if (row < 0 || size_t(row) >= m_pixmaps.size())
+    if (row < 0 || size_t(row) >= m_model->size())
     {
         qWarning() << "unexpected row" << row;
         return;
     }
 
-    m_model->beginRemoveRows({}, row, row);
-    m_pixmaps.erase(std::begin(m_pixmaps) + row);
-    m_model->endRemoveRows();
-
-    changed();
+    if (m_model->removeRow(row))
+        changed();
 }
 
 void EditSpriteDialog::moveLeft()
@@ -276,17 +272,14 @@ void EditSpriteDialog::moveLeft()
         return;
 
     const size_t row = index.row();
-    if (row < 1 || row >= m_pixmaps.size())
+    if (row < 1 || row >= m_model->size())
     {
         qWarning() << "unexpected row" << row;
         return;
     }
 
-    m_model->beginMoveRows({}, row, row, {}, row-1);
-    std::swap(m_pixmaps[row-1], m_pixmaps[row]);
-    m_model->endMoveRows();
-
-    changed();
+    if (m_model->moveRow({}, row, {}, row-1))
+        changed();
 }
 
 void EditSpriteDialog::moveRight()
@@ -296,24 +289,21 @@ void EditSpriteDialog::moveRight()
         return;
 
     const int row = index.row();
-    if (row < 0 || size_t(row) >= m_pixmaps.size() - 1)
+    if (row < 0 || size_t(row) >= m_model->size() - 1)
     {
         qWarning() << "unexpected row" << row;
         return;
     }
 
-    m_model->beginMoveRows({}, row, row, {}, row+2);
-    std::swap(m_pixmaps[row+1], m_pixmaps[row]);
-    m_model->endMoveRows();
-
-    changed();
+    if (m_model->moveRow({}, row, {}, row+2))
+        changed();
 }
 
 void EditSpriteDialog::addEmpty()
 {
     QSize size;
-    if (!m_pixmaps.empty())
-        size = m_pixmaps.front().size();
+    if (!m_model->empty())
+        size = m_model->front().size();
 
     if (size.isEmpty())
     {
@@ -327,9 +317,7 @@ void EditSpriteDialog::addEmpty()
     QPixmap pixmap{size};
     pixmap.fill(Qt::transparent);
 
-    m_model->beginInsertRows({}, m_pixmaps.size(), m_pixmaps.size());
-    m_pixmaps.emplace_back(std::move(pixmap));
-    m_model->endInsertRows();
+    m_model->insertPixmap(std::move(pixmap), m_model->size());
 
     changed();
 }
@@ -342,7 +330,7 @@ void EditSpriteDialog::insertEmpty()
     if (index.isValid())
     {
         row = index.row();
-        if (row < 0 || size_t(row) >= m_pixmaps.size())
+        if (row < 0 || size_t(row) >= m_model->size())
         {
             qWarning() << "unexpected row" << row;
             row = 0;
@@ -350,8 +338,8 @@ void EditSpriteDialog::insertEmpty()
     }
 
     QSize size;
-    if (!m_pixmaps.empty())
-        size = m_pixmaps.front().size();
+    if (!m_model->empty())
+        size = m_model->front().size();
 
     if (size.isEmpty())
     {
@@ -365,9 +353,7 @@ void EditSpriteDialog::insertEmpty()
     QPixmap pixmap{size};
     pixmap.fill(Qt::transparent);
 
-    m_model->beginInsertRows({}, row, row);
-    m_pixmaps.emplace(std::begin(m_pixmaps) + row, std::move(pixmap));
-    m_model->endInsertRows();
+    m_model->insertPixmap(std::move(pixmap), row);
 }
 
 void EditSpriteDialog::edit()
@@ -381,11 +367,9 @@ void EditSpriteDialog::edit()
 
 void EditSpriteDialog::transparentBackgroundSettings()
 {
-    TransparentBackgroundSettingsDialog dialog{this};
+    TransparentBackgroundSettingsDialog dialog{m_settings, this};
     if (dialog.exec() == QDialog::Accepted)
-    {
-        // TODO apply
-    }
+        dialog.save(m_settings);
 }
 
 void EditSpriteDialog::activated(const QModelIndex &index)
@@ -396,12 +380,10 @@ void EditSpriteDialog::activated(const QModelIndex &index)
         return;
     }
 
-    ImageEditorDialog dialog{m_model->pixmap(index), tr("Image Editor: %0").arg(m_spriteName), this};
+    ImageEditorDialog dialog{m_model->pixmap(index), tr("Image Editor: %0").arg(m_spriteName), m_settings, this};
     if (dialog.exec() == QDialog::Accepted)
     {
-        m_pixmaps[index.row()] = dialog.pixmap();
-        emit m_model->dataChanged(index, index, {Qt::DecorationRole});
-
+        m_model->setPixmap(dialog.pixmap(), index);
         changed();
     }
 }
@@ -414,7 +396,7 @@ void EditSpriteDialog::currentChanged()
     m_ui->actionCopy->setEnabled(index.isValid());
     m_ui->actionDelete->setEnabled(index.isValid());
     m_ui->actionMoveLeft->setEnabled(index.isValid() && index.row() > 0);
-    m_ui->actionMoveRight->setEnabled(index.isValid() && size_t(index.row()) < m_pixmaps.size() - 1);
+    m_ui->actionMoveRight->setEnabled(index.isValid() && size_t(index.row()) < m_model->size() - 1);
 }
 
 void EditSpriteDialog::changed()
diff --git a/src/editor/dialogs/editspritedialog.h b/src/editor/dialogs/editspritedialog.h
index d339188..c3e60fb 100644
--- a/src/editor/dialogs/editspritedialog.h
+++ b/src/editor/dialogs/editspritedialog.h
@@ -7,6 +7,7 @@
 #include <vector>
 
 namespace Ui { class EditSpriteDialog; }
+class EditorSettings;
 struct Sprite;
 class SpritesModel;
 
@@ -15,13 +16,14 @@ class EditSpriteDialog : public QDialog
     Q_OBJECT
 
 public:
-    explicit EditSpriteDialog(const std::vector<QPixmap> &pixmaps, const QString &spriteName, QWidget *parent = nullptr);
+    explicit EditSpriteDialog(const std::vector<QPixmap> &pixmaps, const QString &spriteName,
+                              EditorSettings &settings, QWidget *parent = nullptr);
     ~EditSpriteDialog();
 
     void accept() override;
     void reject() override;
 
-    const std::vector<QPixmap> &pixmaps() const { return m_pixmaps; }
+    const std::vector<QPixmap> &pixmaps() const;
 
 private slots:
     void newSprite();
@@ -54,7 +56,8 @@ private:
 
     const std::unique_ptr<Ui::EditSpriteDialog> m_ui;
 
-    std::vector<QPixmap> m_pixmaps;
+    EditorSettings &m_settings;
+
     const QString m_spriteName;
 
     bool m_unsavedChanges{};
diff --git a/src/editor/dialogs/imageeditordialog.cpp b/src/editor/dialogs/imageeditordialog.cpp
index af206fa..2f774e4 100644
--- a/src/editor/dialogs/imageeditordialog.cpp
+++ b/src/editor/dialogs/imageeditordialog.cpp
@@ -5,15 +5,17 @@
 #include <QDebug>
 #include <QButtonGroup>
 #include <QFontDialog>
-#include <QColorDialog>
 
 #include "dialogs/transparentbackgroundsettingsdialog.h"
 #include "imagehelpers.h"
+#include "editorsettings.h"
 
-ImageEditorDialog::ImageEditorDialog(const QPixmap &pixmap, const QString &title, QWidget *parent) :
+ImageEditorDialog::ImageEditorDialog(const QPixmap &pixmap, const QString &title,
+                                     EditorSettings &settings, QWidget *parent) :
     QDialog{parent},
     m_ui{std::make_unique<Ui::ImageEditorDialog>()},
     m_title{title},
+    m_settings{settings},
     m_posLabel{*new QLabel(tr("(%0,%1)").arg(0).arg(0))},
     m_zoomLabel{*new QLabel},
     m_sizeLabel{*new QLabel},
@@ -50,11 +52,6 @@ ImageEditorDialog::ImageEditorDialog(const QPixmap &pixmap, const QString &title
     connect(m_ui->pushButtonSelectFont, &QAbstractButton::pressed,
             this, &ImageEditorDialog::selectFont);
 
-    connect(m_ui->pushButtonLeftButtonColor, &QAbstractButton::pressed,
-            this, &ImageEditorDialog::selectLeftButtonColor);
-    connect(m_ui->pushButtonRightButtonColor, &QAbstractButton::pressed,
-            this, &ImageEditorDialog::selectRightButtonColor);
-
     connect(m_ui->frameColorCoarse, &ColorWidget::colorLeftClicked,
             m_ui->canvas, &DrawingCanvasWidget::setLeftButtonColor);
     connect(m_ui->frameColorCoarse, &ColorWidget::colorRightClicked,
@@ -67,10 +64,16 @@ ImageEditorDialog::ImageEditorDialog(const QPixmap &pixmap, const QString &title
 
     connect(m_ui->canvas, &DrawingCanvasWidget::changed,
             this, &ImageEditorDialog::changed);
+
     connect(m_ui->canvas, &DrawingCanvasWidget::leftButtonColorChanged,
-            this, &ImageEditorDialog::updateLeftButtonColor);
+            m_ui->pushButtonLeftButtonColor, &ColorButton::setColor);
+    connect(m_ui->pushButtonLeftButtonColor, &ColorButton::colorChanged,
+            m_ui->canvas, &DrawingCanvasWidget::setLeftButtonColor);
+
     connect(m_ui->canvas, &DrawingCanvasWidget::rightButtonColorChanged,
-            this, &ImageEditorDialog::updateRightButtonColor);
+            m_ui->pushButtonRightButtonColor, &ColorButton::setColor);
+    connect(m_ui->pushButtonRightButtonColor, &ColorButton::colorChanged,
+            m_ui->canvas, &DrawingCanvasWidget::rightButtonColor);
 
     {
         auto group = new QButtonGroup{this};
@@ -96,6 +99,17 @@ ImageEditorDialog::ImageEditorDialog(const QPixmap &pixmap, const QString &title
                 m_ui->canvas, [canvas=m_ui->canvas](int id){ canvas->setMode(DrawingCanvasWidget::Mode(id)); });
     }
 
+    {
+        auto group = new QButtonGroup{this};
+        group->setExclusive(true);
+        group->addButton(m_ui->toolButtonSize1);
+        group->addButton(m_ui->toolButtonSize2);
+        group->addButton(m_ui->toolButtonSize3);
+        group->addButton(m_ui->toolButtonSize4);
+        group->addButton(m_ui->toolButtonSize5);
+        group->addButton(m_ui->toolButtonSize6);
+    }
+
     {
         auto group = new QButtonGroup{this};
         group->setExclusive(true);
@@ -121,10 +135,11 @@ ImageEditorDialog::ImageEditorDialog(const QPixmap &pixmap, const QString &title
         group->addButton(m_ui->toolButtonAlignRight);
     }
 
-    updateLeftButtonColor(m_ui->canvas->leftButtonColor());
-    updateRightButtonColor(m_ui->canvas->rightButtonColor());
+    m_ui->pushButtonLeftButtonColor->setColor(m_ui->canvas->leftButtonColor());
+    m_ui->pushButtonRightButtonColor->setColor(m_ui->canvas->rightButtonColor());
 
     m_ui->canvas->setPixmap(pixmap);
+    m_ui->canvas->setTransparentBackgroundPattern(settings.transparentBackgroundPattern());
 
     connect(m_ui->canvas, &DrawingCanvasWidget::cursorMoved,
             this, &ImageEditorDialog::cursorMoved);
@@ -159,13 +174,6 @@ const QImage &ImageEditorDialog::image() const
     return m_ui->canvas->image();
 }
 
-void ImageEditorDialog::accept()
-{
-    // TODO
-
-    QDialog::accept();
-}
-
 void ImageEditorDialog::reject()
 {
     if (!m_unsavedChanges)
@@ -210,10 +218,11 @@ void ImageEditorDialog::saveAsPng()
 
 void ImageEditorDialog::transparentBackgroundSettings()
 {
-    TransparentBackgroundSettingsDialog dialog{this};
+    TransparentBackgroundSettingsDialog dialog{m_settings, this};
     if (dialog.exec() == QDialog::Accepted)
     {
-        // TODO apply
+        dialog.save(m_settings);
+        m_ui->canvas->setTransparentBackgroundPattern(m_settings.transparentBackgroundPattern());
     }
 }
 
@@ -233,38 +242,6 @@ void ImageEditorDialog::selectFont()
         m_ui->pushButtonSelectFont->setFont(dialog.selectedFont());
 }
 
-void ImageEditorDialog::selectLeftButtonColor()
-{
-    QColorDialog dialog{m_ui->canvas->leftButtonColor(), this};
-    if (dialog.exec() == QDialog::Accepted)
-        m_ui->canvas->setLeftButtonColor(dialog.selectedColor());
-}
-
-void ImageEditorDialog::selectRightButtonColor()
-{
-    QColorDialog dialog{m_ui->canvas->rightButtonColor(), this};
-    if (dialog.exec() == QDialog::Accepted)
-        m_ui->canvas->setRightButtonColor(dialog.selectedColor());
-}
-
-void ImageEditorDialog::updateLeftButtonColor(const QColor &leftButtonColor)
-{
-    auto frame = m_ui->pushButtonLeftButtonColor;
-    auto palette = frame->palette();
-    auto role = frame->backgroundRole();
-    palette.setBrush(role, leftButtonColor);
-    frame->setPalette(palette);
-}
-
-void ImageEditorDialog::updateRightButtonColor(const QColor &rightButtonColor)
-{
-    auto frame = m_ui->pushButtonRightButtonColor;
-    auto palette = frame->palette();
-    auto role = frame->backgroundRole();
-    palette.setBrush(role, rightButtonColor);
-    frame->setPalette(palette);
-}
-
 void ImageEditorDialog::modeChanged(DrawingCanvasWidget::Mode mode)
 {
     QString msg;
diff --git a/src/editor/dialogs/imageeditordialog.h b/src/editor/dialogs/imageeditordialog.h
index 797f12f..c832766 100644
--- a/src/editor/dialogs/imageeditordialog.h
+++ b/src/editor/dialogs/imageeditordialog.h
@@ -11,19 +11,20 @@ class QLabel;
 class QPixmap;
 class QImage;
 namespace Ui { class ImageEditorDialog; }
+class EditorSettings;
 
 class ImageEditorDialog : public QDialog
 {
     Q_OBJECT
 
 public:
-    explicit ImageEditorDialog(const QPixmap &pixmap, const QString &title, QWidget *parent = nullptr);
+    explicit ImageEditorDialog(const QPixmap &pixmap, const QString &title,
+                               EditorSettings &settings, QWidget *parent = nullptr);
     ~ImageEditorDialog();
 
     QPixmap pixmap() const;
     const QImage &image() const;
 
-    void accept() override;
     void reject() override;
 
 private slots:
@@ -32,10 +33,6 @@ private slots:
 
     void changed();
     void selectFont();
-    void selectLeftButtonColor();
-    void selectRightButtonColor();
-    void updateLeftButtonColor(const QColor &leftButtonColor);
-    void updateRightButtonColor(const QColor &rightButtonColor);
     void modeChanged(DrawingCanvasWidget::Mode mode);
     void cursorMoved(const QPoint &pos);
     void zoomChanged(float zoom);
@@ -47,6 +44,7 @@ private:
     const std::unique_ptr<Ui::ImageEditorDialog> m_ui;
 
     const QString m_title;
+    EditorSettings &m_settings;
 
     QLabel &m_posLabel;
     QLabel &m_zoomLabel;
diff --git a/src/editor/dialogs/imageeditordialog.ui b/src/editor/dialogs/imageeditordialog.ui
index 5a50542..806f29c 100644
--- a/src/editor/dialogs/imageeditordialog.ui
+++ b/src/editor/dialogs/imageeditordialog.ui
@@ -746,7 +746,7 @@
                </widget>
               </item>
               <item>
-               <widget class="QPushButton" name="pushButtonLeftButtonColor">
+               <widget class="ColorButton" name="pushButtonLeftButtonColor">
                 <property name="minimumSize">
                  <size>
                   <width>0</width>
@@ -772,7 +772,7 @@
                </widget>
               </item>
               <item>
-               <widget class="QPushButton" name="pushButtonRightButtonColor">
+               <widget class="ColorButton" name="pushButtonRightButtonColor">
                 <property name="minimumSize">
                  <size>
                   <width>0</width>
@@ -1163,6 +1163,11 @@
    <header>widgets/zoomablescrollarea.h</header>
    <container>1</container>
   </customwidget>
+  <customwidget>
+   <class>ColorButton</class>
+   <extends>QPushButton</extends>
+   <header>widgets/colorbutton.h</header>
+  </customwidget>
  </customwidgets>
  <resources>
   <include location="../resources_editor.qrc"/>
diff --git a/src/editor/dialogs/preferencesdialog.cpp b/src/editor/dialogs/preferencesdialog.cpp
index f17fe5b..7c50a7f 100644
--- a/src/editor/dialogs/preferencesdialog.cpp
+++ b/src/editor/dialogs/preferencesdialog.cpp
@@ -1,11 +1,12 @@
 #include "preferencesdialog.h"
 #include "ui_preferencesdialog.h"
 
-#include <QPushButton>
+#include <QMessageBox>
 
 #include "editorguiutils.h"
+#include "editorsettings.h"
 
-PreferencesDialog::PreferencesDialog(QWidget *parent) :
+PreferencesDialog::PreferencesDialog(const EditorSettings &settings, QWidget *parent) :
     QDialog{parent},
     m_ui{std::make_unique<Ui::PreferencesDialog>()}
 {
@@ -17,6 +18,20 @@ PreferencesDialog::PreferencesDialog(QWidget *parent) :
     setWindowFlag(Qt::WindowCloseButtonHint);
 
     improveButtonBox(m_ui->buttonBox);
+
+    Q_UNUSED(settings);
+    // TODO copy from settings to m_ui->*
 }
 
 PreferencesDialog::~PreferencesDialog() = default;
+
+void PreferencesDialog::save(EditorSettings &settings)
+{
+    Q_UNUSED(settings);
+    // TODO copy from m_ui->* to settings
+}
+
+void PreferencesDialog::accept()
+{
+    QMessageBox::warning(this, tr("Not yet implemented"), tr("Not yet implemented"));
+}
diff --git a/src/editor/dialogs/preferencesdialog.h b/src/editor/dialogs/preferencesdialog.h
index e76862c..77633bb 100644
--- a/src/editor/dialogs/preferencesdialog.h
+++ b/src/editor/dialogs/preferencesdialog.h
@@ -5,15 +5,21 @@
 #include <memory>
 
 namespace Ui { class PreferencesDialog; }
+class EditorSettings;
 
 class PreferencesDialog : public QDialog
 {
     Q_OBJECT
 
 public:
-    explicit PreferencesDialog(QWidget *parent = nullptr);
+    explicit PreferencesDialog(const EditorSettings &settings, QWidget *parent = nullptr);
     ~PreferencesDialog();
 
+    void save(EditorSettings &settings);
+
+public slots:
+    void accept() override;
+
 private:
     const std::unique_ptr<Ui::PreferencesDialog> m_ui;
 };
diff --git a/src/editor/dialogs/preferencesdialog.ui b/src/editor/dialogs/preferencesdialog.ui
index 2b6291a..b16cb81 100644
--- a/src/editor/dialogs/preferencesdialog.ui
+++ b/src/editor/dialogs/preferencesdialog.ui
@@ -6,8 +6,8 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>634</width>
-    <height>614</height>
+    <width>747</width>
+    <height>463</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -29,21 +29,21 @@
          <item>
           <widget class="QCheckBox" name="checkBox_2">
            <property name="text">
-            <string>CheckBox</string>
+            <string>&amp;Show recently edited games in the file menu</string>
            </property>
           </widget>
          </item>
          <item>
           <widget class="QCheckBox" name="checkBox">
            <property name="text">
-            <string>CheckBox</string>
+            <string>&amp;Load last openend file on startup</string>
            </property>
           </widget>
          </item>
          <item>
           <spacer name="verticalSpacer">
            <property name="orientation">
-            <enum>Qt::Vertical</enum>
+            <enum>Qt::Orientation::Vertical</enum>
            </property>
            <property name="sizeHint" stdset="0">
             <size>
@@ -56,7 +56,7 @@
          <item>
           <widget class="QCheckBox" name="checkBox_3">
            <property name="text">
-            <string>CheckBox</string>
+            <string>&amp;Keep backup copies of files (with extension .qb1, .qb2)</string>
            </property>
           </widget>
          </item>
@@ -65,7 +65,7 @@
            <item>
             <spacer name="horizontalSpacer">
              <property name="orientation">
-              <enum>Qt::Horizontal</enum>
+              <enum>Qt::Orientation::Horizontal</enum>
              </property>
              <property name="sizeHint" stdset="0">
               <size>
@@ -78,7 +78,7 @@
            <item>
             <widget class="QLabel" name="label">
              <property name="text">
-              <string>TextLabel</string>
+              <string>Ma&amp;ximum number of backups:</string>
              </property>
             </widget>
            </item>
@@ -88,7 +88,7 @@
            <item>
             <spacer name="horizontalSpacer_2">
              <property name="orientation">
-              <enum>Qt::Horizontal</enum>
+              <enum>Qt::Orientation::Horizontal</enum>
              </property>
              <property name="sizeHint" stdset="0">
               <size>
@@ -103,7 +103,7 @@
          <item>
           <spacer name="verticalSpacer_2">
            <property name="orientation">
-            <enum>Qt::Vertical</enum>
+            <enum>Qt::Orientation::Vertical</enum>
            </property>
            <property name="sizeHint" stdset="0">
             <size>
@@ -116,28 +116,28 @@
          <item>
           <widget class="QCheckBox" name="checkBox_4">
            <property name="text">
-            <string>CheckBox</string>
+            <string>Show progress while loading and saving files</string>
            </property>
           </widget>
          </item>
          <item>
           <widget class="QCheckBox" name="checkBox_5">
            <property name="text">
-            <string>CheckBox</string>
+            <string>At start&amp;up, check for, and remove old temporary files</string>
            </property>
           </widget>
          </item>
          <item>
           <widget class="QCheckBox" name="checkBox_6">
            <property name="text">
-            <string>CheckBox</string>
+            <string>Don't show the &amp;website image in the main menu</string>
            </property>
           </widget>
          </item>
          <item>
           <spacer name="verticalSpacer_3">
            <property name="orientation">
-            <enum>Qt::Vertical</enum>
+            <enum>Qt::Orientation::Vertical</enum>
            </property>
            <property name="sizeHint" stdset="0">
             <size>
@@ -150,21 +150,21 @@
          <item>
           <widget class="QCheckBox" name="checkBox_7">
            <property name="text">
-            <string>CheckBox</string>
+            <string>&amp;Hide the designer and wait while the game is running</string>
            </property>
           </widget>
          </item>
          <item>
           <widget class="QCheckBox" name="checkBox_8">
            <property name="text">
-            <string>CheckBox</string>
+            <string>&amp;Run games in secure mode, not executing any programs</string>
            </property>
           </widget>
          </item>
          <item>
           <spacer name="verticalSpacer_4">
            <property name="orientation">
-            <enum>Qt::Vertical</enum>
+            <enum>Qt::Orientation::Vertical</enum>
            </property>
            <property name="sizeHint" stdset="0">
             <size>
@@ -179,33 +179,40 @@
        <item>
         <widget class="QFrame" name="frame">
          <property name="frameShape">
-          <enum>QFrame::HLine</enum>
+          <enum>QFrame::Shape::HLine</enum>
          </property>
          <property name="frameShadow">
-          <enum>QFrame::Sunken</enum>
+          <enum>QFrame::Shadow::Sunken</enum>
          </property>
         </widget>
        </item>
        <item>
-        <layout class="QVBoxLayout" name="verticalLayout_3" stretch="0,0,0,0,0,0,0,1">
+        <layout class="QVBoxLayout" name="verticalLayout_3" stretch="0,0,0,0,0,0,0,0,1">
          <item>
           <widget class="QCheckBox" name="checkBox_9">
            <property name="text">
-            <string>CheckBox</string>
+            <string>Show &amp;news on startup</string>
            </property>
           </widget>
          </item>
          <item>
           <widget class="QCheckBox" name="checkBox_10">
            <property name="text">
-            <string>CheckBox</string>
+            <string>Show news in default &amp;browser</string>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QCheckBox" name="checkBox_18">
+           <property name="text">
+            <string>Show Minimap in Room editor</string>
            </property>
           </widget>
          </item>
          <item>
           <spacer name="verticalSpacer_5">
            <property name="orientation">
-            <enum>Qt::Vertical</enum>
+            <enum>Qt::Orientation::Vertical</enum>
            </property>
            <property name="sizeHint" stdset="0">
             <size>
@@ -218,7 +225,7 @@
          <item>
           <widget class="QLabel" name="label_2">
            <property name="text">
-            <string>TextLabel</string>
+            <string>Location of the GameMaker TV style logo on screen</string>
            </property>
           </widget>
          </item>
@@ -228,7 +235,7 @@
          <item>
           <spacer name="verticalSpacer_6">
            <property name="orientation">
-            <enum>Qt::Vertical</enum>
+            <enum>Qt::Orientation::Vertical</enum>
            </property>
            <property name="sizeHint" stdset="0">
             <size>
@@ -241,14 +248,14 @@
          <item>
           <widget class="QCheckBox" name="checkBox_11">
            <property name="text">
-            <string>CheckBox</string>
+            <string>Show Trace.log after &amp;Debug</string>
            </property>
           </widget>
          </item>
          <item>
           <spacer name="verticalSpacer_7">
            <property name="orientation">
-            <enum>Qt::Vertical</enum>
+            <enum>Qt::Orientation::Vertical</enum>
            </property>
            <property name="sizeHint" stdset="0">
             <size>
@@ -270,13 +277,13 @@
        <item>
         <widget class="QGroupBox" name="groupBox">
          <property name="title">
-          <string>GroupBox</string>
+          <string>Sprite Form</string>
          </property>
          <layout class="QVBoxLayout" name="verticalLayout_5">
           <item>
            <widget class="QCheckBox" name="checkBox_12">
             <property name="text">
-             <string>CheckBox</string>
+             <string>S&amp;how the origin in the sprite image</string>
             </property>
            </widget>
           </item>
@@ -286,7 +293,7 @@
        <item>
         <spacer name="verticalSpacer_10">
          <property name="orientation">
-          <enum>Qt::Vertical</enum>
+          <enum>Qt::Orientation::Vertical</enum>
          </property>
          <property name="sizeHint" stdset="0">
           <size>
@@ -299,13 +306,13 @@
        <item>
         <widget class="QGroupBox" name="groupBox_2">
          <property name="title">
-          <string>GroupBox</string>
+          <string>Object Form</string>
          </property>
          <layout class="QVBoxLayout" name="verticalLayout_6">
           <item>
            <widget class="QCheckBox" name="checkBox_13">
             <property name="text">
-             <string>CheckBox</string>
+             <string>&amp;In object properties, show hints for the actions</string>
             </property>
            </widget>
           </item>
@@ -314,7 +321,7 @@
             <item>
              <spacer name="horizontalSpacer_3">
               <property name="orientation">
-               <enum>Qt::Horizontal</enum>
+               <enum>Qt::Orientation::Horizontal</enum>
               </property>
               <property name="sizeHint" stdset="0">
                <size>
@@ -327,7 +334,7 @@
             <item>
              <widget class="QLabel" name="label_3">
               <property name="text">
-               <string>TextLabel</string>
+               <string>Default TAB to select:</string>
               </property>
              </widget>
             </item>
@@ -337,7 +344,7 @@
             <item>
              <spacer name="horizontalSpacer_4">
               <property name="orientation">
-               <enum>Qt::Horizontal</enum>
+               <enum>Qt::Orientation::Horizontal</enum>
               </property>
               <property name="sizeHint" stdset="0">
                <size>
@@ -355,7 +362,7 @@
        <item>
         <spacer name="verticalSpacer_9">
          <property name="orientation">
-          <enum>Qt::Vertical</enum>
+          <enum>Qt::Orientation::Vertical</enum>
          </property>
          <property name="sizeHint" stdset="0">
           <size>
@@ -368,27 +375,27 @@
        <item>
         <widget class="QGroupBox" name="groupBox_3">
          <property name="title">
-          <string>GroupBox</string>
+          <string>Room Form</string>
          </property>
          <layout class="QVBoxLayout" name="verticalLayout_7">
           <item>
            <widget class="QCheckBox" name="checkBox_14">
             <property name="text">
-             <string>CheckBox</string>
+             <string>&amp;When closing, remove instances outside the room</string>
             </property>
            </widget>
           </item>
           <item>
            <widget class="QCheckBox" name="checkBox_15">
             <property name="text">
-             <string>CheckBox</string>
+             <string>R&amp;emember room settings when closing the form</string>
             </property>
            </widget>
           </item>
           <item>
            <widget class="QCheckBox" name="checkBox_16">
             <property name="text">
-             <string>CheckBox</string>
+             <string>Room Grid ON by default</string>
             </property>
            </widget>
           </item>
@@ -397,21 +404,17 @@
             <item>
              <widget class="QCheckBox" name="checkBox_17">
               <property name="text">
-               <string>CheckBox</string>
+               <string>Fill room with color when no background color selected. (Editor only)</string>
               </property>
              </widget>
             </item>
             <item>
-             <widget class="QToolButton" name="toolButton">
-              <property name="text">
-               <string>...</string>
-              </property>
-             </widget>
+             <widget class="ColorButton" name="pushButton"/>
             </item>
             <item>
              <spacer name="horizontalSpacer_5">
               <property name="orientation">
-               <enum>Qt::Horizontal</enum>
+               <enum>Qt::Orientation::Horizontal</enum>
               </property>
               <property name="sizeHint" stdset="0">
                <size>
@@ -429,7 +432,7 @@
        <item>
         <spacer name="verticalSpacer_8">
          <property name="orientation">
-          <enum>Qt::Vertical</enum>
+          <enum>Qt::Orientation::Vertical</enum>
          </property>
          <property name="sizeHint" stdset="0">
           <size>
@@ -456,12 +459,19 @@
    <item>
     <widget class="QDialogButtonBox" name="buttonBox">
      <property name="standardButtons">
-      <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
+      <set>QDialogButtonBox::StandardButton::Cancel|QDialogButtonBox::StandardButton::Ok</set>
      </property>
     </widget>
    </item>
   </layout>
  </widget>
+ <customwidgets>
+  <customwidget>
+   <class>ColorButton</class>
+   <extends>QPushButton</extends>
+   <header>widgets/colorbutton.h</header>
+  </customwidget>
+ </customwidgets>
  <resources/>
  <connections>
   <connection>
diff --git a/src/editor/dialogs/spritepropertiesdialog.cpp b/src/editor/dialogs/spritepropertiesdialog.cpp
index b1889e5..5694ad4 100644
--- a/src/editor/dialogs/spritepropertiesdialog.cpp
+++ b/src/editor/dialogs/spritepropertiesdialog.cpp
@@ -19,6 +19,7 @@ SpritePropertiesDialog::SpritePropertiesDialog(Sprite &sprite, ProjectTreeModel
     m_ui{std::make_unique<Ui::SpritePropertiesDialog>()},
     m_sprite{sprite},
     m_projectModel{projectModel},
+    m_mainWindow{mainWindow},
     m_pixmaps{m_sprite.pixmaps}
 {
     m_ui->setupUi(this);
@@ -147,7 +148,12 @@ void SpritePropertiesDialog::saveSprite()
 
 void SpritePropertiesDialog::editSprite()
 {
-    EditSpriteDialog dialog{m_pixmaps, m_sprite.name, this};
+    EditSpriteDialog dialog {
+        m_pixmaps,
+        m_sprite.name,
+        m_mainWindow.settings(),
+        this
+    };
     if (dialog.exec() == QDialog::Accepted)
     {
         m_pixmaps = dialog.pixmaps();
@@ -158,16 +164,17 @@ void SpritePropertiesDialog::editSprite()
 
 void SpritePropertiesDialog::centerOrigin()
 {
+    QPoint center;
     if (m_pixmaps.empty() || m_pixmaps.front().isNull())
-    {
         qDebug() << "unexpected empty pixmaps";
-        m_ui->spinBoxOriginX->setValue(0);
-        m_ui->spinBoxOriginY->setValue(0);
-        return;
-    }
+    else
+        center = {
+            m_pixmaps.front().width() / 2,
+            m_pixmaps.front().height() / 2
+        };
 
-    m_ui->spinBoxOriginX->setValue(m_pixmaps.front().width() / 2);
-    m_ui->spinBoxOriginY->setValue(m_pixmaps.front().height() / 2);
+    m_ui->spinBoxOriginX->setValue(center.x());
+    m_ui->spinBoxOriginY->setValue(center.y());
 }
 
 void SpritePropertiesDialog::modifyMask()
diff --git a/src/editor/dialogs/spritepropertiesdialog.h b/src/editor/dialogs/spritepropertiesdialog.h
index a655d7e..9e6e70d 100644
--- a/src/editor/dialogs/spritepropertiesdialog.h
+++ b/src/editor/dialogs/spritepropertiesdialog.h
@@ -40,6 +40,7 @@ private:
 
     Sprite &m_sprite;
     ProjectTreeModel &m_projectModel;
+    MainWindow &m_mainWindow;
 
     bool m_unsavedChanges{};
 
diff --git a/src/editor/dialogs/transparentbackgroundsettingsdialog.cpp b/src/editor/dialogs/transparentbackgroundsettingsdialog.cpp
index 7436230..87bd2df 100644
--- a/src/editor/dialogs/transparentbackgroundsettingsdialog.cpp
+++ b/src/editor/dialogs/transparentbackgroundsettingsdialog.cpp
@@ -1,15 +1,69 @@
 #include "transparentbackgroundsettingsdialog.h"
 #include "ui_transparentbackgroundsettingsdialog.h"
 
-#include "editorguiutils.h"
+#include <QMessageBox>
 
-TransparentBackgroundSettingsDialog::TransparentBackgroundSettingsDialog(QWidget *parent) :
+#include "editorguiutils.h"
+#include "editorsettings.h"
+
+TransparentBackgroundSettingsDialog::TransparentBackgroundSettingsDialog(const EditorSettings &settings, QWidget *parent) :
     QDialog{parent},
     m_ui{std::make_unique<Ui::TransparentBackgroundSettingsDialog>()}
 {
     m_ui->setupUi(this);
 
     improveButtonBox(m_ui->buttonBox);
+
+    const auto type = settings.transparentBackgroundPatternType();
+    switch (type)
+    {
+    case TransparentBackgroundPattern::Type::BlockPattern:
+        m_ui->radioButtonBlockPattern->setChecked(true);
+        goto after;
+    case TransparentBackgroundPattern::Type::SingleColor:
+        m_ui->radioButtonSingleColor->setChecked(true);
+        goto after;
+    }
+    qWarning() << "unknown TransparentBackgroundPattern::Type" << std::to_underlying(type);
+after:
+
+    m_ui->pushButtonColor1->setColor(settings.transparentBackgroundBlockPatternColor1());
+    m_ui->pushButtonColor2->setColor(settings.transparentBackgroundBlockPatternColor2());
+    m_ui->spinBoxBlockSize->setValue(settings.transparentBackgroundBlockPatternBlockSize());
+    m_ui->pushButtonColor->setColor(settings.transparentBackgroundSingleColor());
 }
 
 TransparentBackgroundSettingsDialog::~TransparentBackgroundSettingsDialog() = default;
+
+void TransparentBackgroundSettingsDialog::save(EditorSettings &settings)
+{
+    if (m_ui->radioButtonBlockPattern->isChecked())
+        settings.setTransparentBackgroundPatternType(TransparentBackgroundPattern::Type::BlockPattern);
+    else if (m_ui->radioButtonSingleColor->isChecked())
+        settings.setTransparentBackgroundPatternType(TransparentBackgroundPattern::Type::SingleColor);
+    else
+        qWarning() << "no type is selected?!";
+
+    settings.setTransparentBackgroundBlockPatternColor1(m_ui->pushButtonColor1->color());
+    settings.setTransparentBackgroundBlockPatternColor2(m_ui->pushButtonColor2->color());
+    settings.setTransparentBackgroundBlockPatternBlockSize(m_ui->spinBoxBlockSize->value());
+    settings.setTransparentBackgroundSingleColor(m_ui->pushButtonColor->color());
+}
+
+void TransparentBackgroundSettingsDialog::accept()
+{
+    if (!m_ui->radioButtonBlockPattern->isChecked() &&
+        !m_ui->radioButtonSingleColor->isChecked())
+    {
+        QMessageBox::warning(this, tr("No pattern type selected!"), tr("No pattern type selected!"));
+        return;
+    }
+
+    if (m_ui->spinBoxBlockSize->value() < 1)
+    {
+        QMessageBox::warning(this, tr("Invalid block size selected!"), tr("Invalid block size selected!"));
+        return;
+    }
+
+    QDialog::accept();
+}
diff --git a/src/editor/dialogs/transparentbackgroundsettingsdialog.h b/src/editor/dialogs/transparentbackgroundsettingsdialog.h
index 3d6fbe7..7c34306 100644
--- a/src/editor/dialogs/transparentbackgroundsettingsdialog.h
+++ b/src/editor/dialogs/transparentbackgroundsettingsdialog.h
@@ -5,15 +5,21 @@
 #include <memory>
 
 namespace Ui { class TransparentBackgroundSettingsDialog; }
+class EditorSettings;
 
 class TransparentBackgroundSettingsDialog : public QDialog
 {
     Q_OBJECT
 
 public:
-    explicit TransparentBackgroundSettingsDialog(QWidget *parent = nullptr);
+    explicit TransparentBackgroundSettingsDialog(const EditorSettings &settings, QWidget *parent = nullptr);
     ~TransparentBackgroundSettingsDialog() override;
 
+    void save(EditorSettings &settings);
+
+public slots:
+    void accept() override;
+
 private:
     const std::unique_ptr<Ui::TransparentBackgroundSettingsDialog> m_ui;
 };
diff --git a/src/editor/dialogs/transparentbackgroundsettingsdialog.ui b/src/editor/dialogs/transparentbackgroundsettingsdialog.ui
index 24fd2d7..dc05dba 100644
--- a/src/editor/dialogs/transparentbackgroundsettingsdialog.ui
+++ b/src/editor/dialogs/transparentbackgroundsettingsdialog.ui
@@ -6,30 +6,137 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>400</width>
-    <height>300</height>
+    <width>301</width>
+    <height>221</height>
    </rect>
   </property>
   <property name="windowTitle">
    <string>Transparent Background Settings</string>
   </property>
-  <widget class="QDialogButtonBox" name="buttonBox">
-   <property name="geometry">
-    <rect>
-     <x>30</x>
-     <y>240</y>
-     <width>341</width>
-     <height>32</height>
-    </rect>
-   </property>
-   <property name="orientation">
-    <enum>Qt::Horizontal</enum>
-   </property>
-   <property name="standardButtons">
-    <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
-   </property>
-  </widget>
+  <layout class="QVBoxLayout" name="verticalLayout">
+   <item>
+    <layout class="QGridLayout" name="gridLayout">
+     <item row="5" column="2">
+      <widget class="ColorButton" name="pushButtonColor"/>
+     </item>
+     <item row="1" column="0">
+      <widget class="QRadioButton" name="radioButtonBlockPattern">
+       <property name="text">
+        <string>Block pattern</string>
+       </property>
+      </widget>
+     </item>
+     <item row="3" column="2">
+      <widget class="QSpinBox" name="spinBoxBlockSize">
+       <property name="minimum">
+        <number>1</number>
+       </property>
+       <property name="maximum">
+        <number>65535</number>
+       </property>
+      </widget>
+     </item>
+     <item row="6" column="0">
+      <spacer name="verticalSpacer_2">
+       <property name="orientation">
+        <enum>Qt::Orientation::Vertical</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>20</width>
+         <height>40</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+     <item row="5" column="1">
+      <widget class="QLabel" name="labelColor">
+       <property name="text">
+        <string>Color:</string>
+       </property>
+      </widget>
+     </item>
+     <item row="1" column="2">
+      <widget class="ColorButton" name="pushButtonColor1"/>
+     </item>
+     <item row="5" column="0">
+      <widget class="QRadioButton" name="radioButtonSingleColor">
+       <property name="text">
+        <string>Single color</string>
+       </property>
+      </widget>
+     </item>
+     <item row="1" column="1">
+      <widget class="QLabel" name="labelColor1">
+       <property name="text">
+        <string>Color 1:</string>
+       </property>
+      </widget>
+     </item>
+     <item row="2" column="2">
+      <widget class="ColorButton" name="pushButtonColor2"/>
+     </item>
+     <item row="0" column="0">
+      <spacer name="verticalSpacer">
+       <property name="orientation">
+        <enum>Qt::Orientation::Vertical</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>20</width>
+         <height>40</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+     <item row="2" column="1">
+      <widget class="QLabel" name="labelColor2">
+       <property name="text">
+        <string>Color 2:</string>
+       </property>
+      </widget>
+     </item>
+     <item row="3" column="1">
+      <widget class="QLabel" name="labelBlockSize">
+       <property name="text">
+        <string>Block size:</string>
+       </property>
+      </widget>
+     </item>
+     <item row="4" column="0">
+      <spacer name="verticalSpacer_3">
+       <property name="orientation">
+        <enum>Qt::Orientation::Vertical</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>20</width>
+         <height>40</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+    </layout>
+   </item>
+   <item>
+    <widget class="QDialogButtonBox" name="buttonBox">
+     <property name="orientation">
+      <enum>Qt::Orientation::Horizontal</enum>
+     </property>
+     <property name="standardButtons">
+      <set>QDialogButtonBox::StandardButton::Cancel|QDialogButtonBox::StandardButton::Ok</set>
+     </property>
+    </widget>
+   </item>
+  </layout>
  </widget>
+ <customwidgets>
+  <customwidget>
+   <class>ColorButton</class>
+   <extends>QPushButton</extends>
+   <header>widgets/colorbutton.h</header>
+  </customwidget>
+ </customwidgets>
  <resources/>
  <connections>
   <connection>
diff --git a/src/editor/editorguiutils.cpp b/src/editor/editorguiutils.cpp
index d07e564..71aca0d 100644
--- a/src/editor/editorguiutils.cpp
+++ b/src/editor/editorguiutils.cpp
@@ -45,3 +45,35 @@ void improveButtonBox(QDialogButtonBox *buttonBox)
     if (auto button = buttonBox->button(QDialogButtonBox::Cancel))
         button->setIcon(QIcon{":/qtgameengine/icons/delete.png"});
 }
+
+static QBrush makeBlockPatternBrush(QColor color1, QColor color2, int blockSize)
+{
+    QBrush brush;
+    QPixmap pixmap{blockSize * 2, blockSize * 2};
+    QPainter painter{&pixmap};
+    painter.setPen(Qt::NoPen);
+    painter.setBrush(color1);
+    painter.drawRect(0, 0, blockSize, blockSize);
+    painter.drawRect(blockSize, blockSize, blockSize, blockSize);
+    painter.setBrush(color2);
+    painter.drawRect(0, blockSize, blockSize, blockSize);
+    painter.drawRect(blockSize, 0, blockSize, blockSize);
+    brush.setTexture(std::move(pixmap));
+    return brush;
+}
+
+QBrush makeTransparentBackgroundPatternBrush(const TransparentBackgroundPattern &transparentBackgroundPattern)
+{
+    switch (transparentBackgroundPattern.type)
+    {
+    case TransparentBackgroundPattern::Type::BlockPattern:
+        return makeBlockPatternBrush(
+            transparentBackgroundPattern.color1,
+            transparentBackgroundPattern.color2,
+            transparentBackgroundPattern.blockSize);
+    case TransparentBackgroundPattern::Type::SingleColor:
+        return transparentBackgroundPattern.singleColor;
+    }
+    qWarning() << "unknown TransparentBackgroundPattern::Type" << transparentBackgroundPattern.type;
+    return {};
+}
diff --git a/src/editor/editorguiutils.h b/src/editor/editorguiutils.h
index d5eac40..a842ee3 100644
--- a/src/editor/editorguiutils.h
+++ b/src/editor/editorguiutils.h
@@ -1,11 +1,36 @@
 #pragma once
 
+#include <QObject>
+#include <QColor>
+
 class QBrush;
 class QPen;
-class QColor;
 class QDialogButtonBox;
 
 QBrush makeGridBrush(int snapX, int snapY, const QPen &gridPen, const QColor &backgroundColor);
 QBrush makeGridBrush(int snapX, int snapY, const QColor &gridColor, const QColor &backgroundColor);
 
+struct TransparentBackgroundPattern
+{
+    Q_GADGET
+public:
+
+    enum class Type {
+        BlockPattern,
+        SingleColor
+    };
+    Q_ENUM(Type)
+
+    Type type{Type::BlockPattern};
+    QColor color1{Qt::gray};
+    QColor color2{Qt::white};
+    int blockSize{16};
+
+    QColor singleColor{Qt::darkGray};
+
+    constexpr bool operator==(const TransparentBackgroundPattern &other) const = default;
+};
+
+QBrush makeTransparentBackgroundPatternBrush(const TransparentBackgroundPattern &transparentBackgroundPattern);
+
 void improveButtonBox(QDialogButtonBox *buttonBox);
diff --git a/src/editor/editorsettings.cpp b/src/editor/editorsettings.cpp
new file mode 100644
index 0000000..1e086fc
--- /dev/null
+++ b/src/editor/editorsettings.cpp
@@ -0,0 +1,84 @@
+#include "editorsettings.h"
+
+#include <QColor>
+
+QByteArray EditorSettings::mainWindowGeometry() const
+{
+    return value("mainWindowGeometry").toByteArray();
+}
+
+void EditorSettings::setMainWindowGeometry(const QByteArray &mainWindowGeometry)
+{
+    setValue("mainWindowGeometry", mainWindowGeometry);
+}
+
+QByteArray EditorSettings::mainWindowState() const
+{
+    return value("mainWindowState").toByteArray();
+}
+
+void EditorSettings::setMainWindowState(const QByteArray &mainWindowState)
+{
+    setValue("mainWindowState", mainWindowState);
+}
+
+TransparentBackgroundPattern::Type EditorSettings::transparentBackgroundPatternType() const
+{
+    return value("transparentBackgroundPatternType", QVariant::fromValue(TransparentBackgroundPattern::Type::BlockPattern)).value<TransparentBackgroundPattern::Type>();
+}
+
+void EditorSettings::setTransparentBackgroundPatternType(TransparentBackgroundPattern::Type transparentBackgroundPatternType)
+{
+    setValue("transparentBackgroundPatternType", QVariant::fromValue(transparentBackgroundPatternType));
+}
+
+QColor EditorSettings::transparentBackgroundBlockPatternColor1() const
+{
+    return value("transparentBackgroundBlockPatternColor1", QColor{Qt::gray}).value<QColor>();
+}
+
+void EditorSettings::setTransparentBackgroundBlockPatternColor1(QColor transparentBackgroundBlockPatternColor1)
+{
+    setValue("transparentBackgroundBlockPatternColor1", transparentBackgroundBlockPatternColor1);
+}
+
+QColor EditorSettings::transparentBackgroundBlockPatternColor2() const
+{
+    return value("transparentBackgroundBlockPatternColor2", QColor{Qt::white}).value<QColor>();
+}
+
+void EditorSettings::setTransparentBackgroundBlockPatternColor2(QColor transparentBackgroundBlockPatternColor2)
+{
+    setValue("transparentBackgroundBlockPatternColor2", transparentBackgroundBlockPatternColor2);
+}
+
+int EditorSettings::transparentBackgroundBlockPatternBlockSize() const
+{
+    return value("transparentBackgroundBlockPatternBlockSize", 16).toInt();
+}
+
+void EditorSettings::setTransparentBackgroundBlockPatternBlockSize(int transparentBackgroundBlockPatternBlockSize)
+{
+    setValue("transparentBackgroundBlockPatternBlockSize", transparentBackgroundBlockPatternBlockSize);
+}
+
+QColor EditorSettings::transparentBackgroundSingleColor() const
+{
+    return value("transparentBackgroundSingleColor", QColor{Qt::darkGray}).value<QColor>();
+}
+
+void EditorSettings::setTransparentBackgroundSingleColor(QColor transparentBackgroundSingleColor)
+{
+    setValue("transparentBackgroundSingleColor", transparentBackgroundSingleColor);
+}
+
+TransparentBackgroundPattern EditorSettings::transparentBackgroundPattern() const
+{
+    return TransparentBackgroundPattern {
+        transparentBackgroundPatternType(),
+        transparentBackgroundBlockPatternColor1(),
+        transparentBackgroundBlockPatternColor2(),
+        transparentBackgroundBlockPatternBlockSize(),
+        transparentBackgroundSingleColor()
+    };
+}
diff --git a/src/editor/editorsettings.h b/src/editor/editorsettings.h
new file mode 100644
index 0000000..0b0cf63
--- /dev/null
+++ b/src/editor/editorsettings.h
@@ -0,0 +1,36 @@
+#pragma once
+
+#include <QSettings>
+
+#include "editorguiutils.h"
+
+class EditorSettings : public QSettings
+{
+    Q_OBJECT
+
+public:
+    using QSettings::QSettings;
+
+    QByteArray mainWindowGeometry() const;
+    void setMainWindowGeometry(const QByteArray &mainWindowGeometry);
+
+    QByteArray mainWindowState() const;
+    void setMainWindowState(const QByteArray &mainWindowState);
+
+    TransparentBackgroundPattern::Type transparentBackgroundPatternType() const;
+    void setTransparentBackgroundPatternType(TransparentBackgroundPattern::Type transparentBackgroundPatternType);
+
+    QColor transparentBackgroundBlockPatternColor1() const;
+    void setTransparentBackgroundBlockPatternColor1(QColor transparentBackgroundBlockPatternColor1);
+
+    QColor transparentBackgroundBlockPatternColor2() const;
+    void setTransparentBackgroundBlockPatternColor2(QColor transparentBackgroundBlockPatternColor2);
+
+    int transparentBackgroundBlockPatternBlockSize() const;
+    void setTransparentBackgroundBlockPatternBlockSize(int transparentBackgroundBlockPatternBlockSize);
+
+    QColor transparentBackgroundSingleColor() const;
+    void setTransparentBackgroundSingleColor(QColor transparentBackgroundSingleColor);
+
+    TransparentBackgroundPattern transparentBackgroundPattern() const;
+};
diff --git a/src/editor/mainwindow.cpp b/src/editor/mainwindow.cpp
index 5b01cc7..788c156 100644
--- a/src/editor/mainwindow.cpp
+++ b/src/editor/mainwindow.cpp
@@ -11,6 +11,7 @@
 #include <QInputDialog>
 #include <QDebug>
 
+#include "editorsettings.h"
 #include "projectserialization.h"
 #include "models/projecttreemodel.h"
 #include "dialogs/preferencesdialog.h"
@@ -47,9 +48,10 @@ template<> struct PropertiesDialogForDetail<Room> { using Type = RoomPropertiesD
 template<typename T> using PropertiesDialogFor = typename PropertiesDialogForDetail<T>::Type;
 }
 
-MainWindow::MainWindow(const QString &filePath, QWidget *parent) :
+MainWindow::MainWindow(const QString &filePath, EditorSettings &settings, QWidget *parent) :
     QMainWindow{parent},
     m_ui{std::make_unique<Ui::MainWindow>()},
+    m_settings{settings},
     m_filePath{filePath},
     m_projectTreeModel{std::make_unique<ProjectTreeModel>(m_project, this)}
 {
@@ -166,6 +168,9 @@ MainWindow::MainWindow(const QString &filePath, QWidget *parent) :
 
     if (!m_filePath.isEmpty())
         loadFile(m_filePath);
+
+    restoreGeometry(m_settings.mainWindowGeometry());
+    restoreState(m_settings.mainWindowState());
 }
 
 template<>
@@ -319,6 +324,9 @@ void MainWindow::closeEvent(QCloseEvent *event)
         }
     }
 
+    m_settings.setMainWindowGeometry(saveGeometry());
+    m_settings.setMainWindowState(saveState());
+
     QMainWindow::closeEvent(event);
 }
 
@@ -594,8 +602,9 @@ void MainWindow::exportResources()
 
 void MainWindow::preferences()
 {
-    PreferencesDialog dialog{this};
-    dialog.exec();
+    PreferencesDialog dialog{m_settings, this};
+    if (dialog.exec() == QDialog::Accepted)
+        dialog.save(m_settings);
 }
 
 void MainWindow::create()
@@ -718,11 +727,9 @@ void MainWindow::showObjectInformation()
 
 void MainWindow::transparentBackgroundSettings()
 {
-    TransparentBackgroundSettingsDialog dialog{this};
+    TransparentBackgroundSettingsDialog dialog{m_settings, this};
     if (dialog.exec() == QDialog::Accepted)
-    {
-        // TODO apply
-    }
+        dialog.save(m_settings);
 }
 
 template<typename T>
diff --git a/src/editor/mainwindow.h b/src/editor/mainwindow.h
index b9a7d21..8f3c564 100644
--- a/src/editor/mainwindow.h
+++ b/src/editor/mainwindow.h
@@ -10,6 +10,7 @@
 class QMdiSubWindow;
 class QActionGroup;
 namespace Ui { class MainWindow; }
+class EditorSettings;
 class ProjectTreeModel;
 
 class MainWindow : public QMainWindow
@@ -17,9 +18,12 @@ class MainWindow : public QMainWindow
     Q_OBJECT
 
 public:
-    explicit MainWindow(const QString &filePath, QWidget *parent = nullptr);
+    explicit MainWindow(const QString &filePath, EditorSettings &settings, QWidget *parent = nullptr);
     ~MainWindow();
 
+    EditorSettings &settings() { return m_settings; }
+    const EditorSettings &settings() const { return m_settings; }
+
 private:
     template<typename T>
     std::map<T*, QMdiSubWindow*> &propertyWindowsFor();
@@ -96,6 +100,8 @@ private:
 
     const std::unique_ptr<Ui::MainWindow> m_ui;
 
+    EditorSettings &m_settings;
+
     ProjectContainer m_project;
 
     QString m_filePath;
diff --git a/src/editor/models/spritesmodel.cpp b/src/editor/models/spritesmodel.cpp
index a1c4a21..6a78924 100644
--- a/src/editor/models/spritesmodel.cpp
+++ b/src/editor/models/spritesmodel.cpp
@@ -9,6 +9,12 @@ SpritesModel::SpritesModel(const std::vector<QPixmap> &pixmaps, QObject *parent)
 {
 }
 
+SpritesModel::SpritesModel(std::vector<QPixmap> &&pixmaps, QObject *parent) :
+    QAbstractListModel{parent},
+    m_pixmaps{std::move(pixmaps)}
+{
+}
+
 int SpritesModel::rowCount(const QModelIndex &parent) const
 {
     Q_UNUSED(parent)
@@ -45,10 +51,124 @@ QVariant SpritesModel::data(const QModelIndex &index, int role) const
     return {};
 }
 
+bool SpritesModel::removeRows(int row, int count, const QModelIndex &parent)
+{
+    Q_UNUSED(parent)
+
+    if (row < 0 || std::size_t(row) >= m_pixmaps.size())
+    {
+        qWarning() << "unexpected row" << row;
+        return false;
+    }
+
+    if (count < 0 || std::size_t(count) > m_pixmaps.size() - row)
+    {
+        qWarning() << "unexpected row+count" << count << row;
+        return false;
+    }
+
+    beginRemoveRows({}, row, row + count - 1);
+    auto begin = std::next(std::begin(m_pixmaps), row);
+    auto end = std::next(begin, count);
+    m_pixmaps.erase(begin, end);
+    endRemoveRows();
+
+    return true;
+}
+
+bool SpritesModel::moveRows(const QModelIndex &sourceParent, int sourceRow, int count, const QModelIndex &destinationParent, int destinationChild)
+{
+    if (sourceParent.isValid())
+        return false;
+    if (destinationParent.isValid())
+        return false;
+    if (count != 1)
+        return false;
+
+    beginMoveRows({}, sourceRow, sourceRow, {}, destinationChild);
+    auto first  = m_pixmaps.begin();
+    auto src    = first + sourceRow;
+    auto dst    = first + destinationChild;
+
+    if (src < dst)
+        std::rotate(src, src + 1, dst);
+    else if (dst < src)
+        std::rotate(dst, src, src + 1);
+    endMoveRows();
+
+    return true;
+}
+
+void SpritesModel::setPixmaps(const std::vector<QPixmap> &pixmaps)
+{
+    beginResetModel();
+    m_pixmaps = pixmaps;
+    endResetModel();
+}
+
+void SpritesModel::setPixmaps(std::vector<QPixmap> &&pixmaps)
+{
+    beginResetModel();
+    m_pixmaps = std::move(pixmaps);
+    endResetModel();
+}
+
 const QPixmap &SpritesModel::pixmap(const QModelIndex &index) const
 {
-    if (index.row() < 0 || std::size_t(index.row()) >= m_pixmaps.size())
+    if (!index.isValid())
+        qFatal("invalid index");
+    return pixmap(index.row());
+}
+
+const QPixmap &SpritesModel::pixmap(int row) const
+{
+    if (row < 0 || std::size_t(row) >= m_pixmaps.size())
+        qFatal("row %i out of range", row);
+    return m_pixmaps.at(row);
+}
+
+void SpritesModel::setPixmap(const QPixmap &pixmap, const QModelIndex &index)
+{
+    m_pixmaps[index.row()] = pixmap;
+    emit dataChanged(index, index, {Qt::DecorationRole});
+}
+
+void SpritesModel::setPixmap(QPixmap &&pixmap, const QModelIndex &index)
+{
+    m_pixmaps[index.row()] = std::move(pixmap);
+    emit dataChanged(index, index, {Qt::DecorationRole});
+}
+
+void SpritesModel::setPixmap(const QPixmap &pixmap, int row)
+{
+    const auto index = createIndex(row, 0);
+    m_pixmaps[index.row()] = pixmap;
+    emit dataChanged(index, index, {Qt::DecorationRole});
+}
+
+void SpritesModel::setPixmap(QPixmap &&pixmap, int row)
+{
+    const auto index = createIndex(row, 0);
+    m_pixmaps[index.row()] = std::move(pixmap);
+    emit dataChanged(index, index, {Qt::DecorationRole});
+}
+
+void SpritesModel::insertPixmap(const QPixmap &pixmap, std::size_t index)
+{
+    if (index > m_pixmaps.size())
         qFatal("index out of range");
 
-    return m_pixmaps.at(index.row());
+    beginInsertRows({}, index, index);
+    m_pixmaps.emplace(std::begin(m_pixmaps) + index, pixmap);
+    endInsertRows();
+}
+
+void SpritesModel::insertPixmap(QPixmap &&pixmap, std::size_t index)
+{
+    if (index > m_pixmaps.size())
+        qFatal("index out of range");
+
+    beginInsertRows({}, index, index);
+    m_pixmaps.emplace(std::begin(m_pixmaps) + index, std::move(pixmap));
+    endInsertRows();
 }
diff --git a/src/editor/models/spritesmodel.h b/src/editor/models/spritesmodel.h
index ae4609f..7a36a55 100644
--- a/src/editor/models/spritesmodel.h
+++ b/src/editor/models/spritesmodel.h
@@ -11,24 +11,31 @@ class SpritesModel : public QAbstractListModel
 
 public:
     explicit SpritesModel(const std::vector<QPixmap> &pixmaps, QObject *parent = nullptr);
+    explicit SpritesModel(std::vector<QPixmap> &&pixmaps, QObject *parent = nullptr);
 
     int rowCount(const QModelIndex &parent) const override;
     QVariant data(const QModelIndex &index, int role) const override;
+    bool removeRows(int row, int count, const QModelIndex &parent) override;
+    bool moveRows(const QModelIndex &sourceParent, int sourceRow, int count, const QModelIndex &destinationParent, int destinationChild) override;
+
+    const std::vector<QPixmap> &pixmaps() const { return m_pixmaps; }
+    void setPixmaps(const std::vector<QPixmap> &pixmaps);
+    void setPixmaps(std::vector<QPixmap> &&pixmaps);
+
+    auto size() const { return m_pixmaps.size(); }
+    auto empty() const { return m_pixmaps.empty(); }
+    const auto &front() const { return m_pixmaps.front(); }
 
     const QPixmap &pixmap(const QModelIndex &index) const;
+    const QPixmap &pixmap(int row) const;
+    void setPixmap(const QPixmap &pixmap, const QModelIndex &index);
+    void setPixmap(QPixmap &&pixmap, const QModelIndex &index);
+    void setPixmap(const QPixmap &pixmap, int row);
+    void setPixmap(QPixmap &&pixmap, int row);
 
-    using QAbstractListModel::beginResetModel;
-    using QAbstractListModel::endResetModel;
-
-    using QAbstractListModel::beginInsertRows;
-    using QAbstractListModel::endInsertRows;
-
-    using QAbstractListModel::beginRemoveRows;
-    using QAbstractListModel::endRemoveRows;
-
-    using QAbstractListModel::beginMoveRows;
-    using QAbstractListModel::endMoveRows;
+    void insertPixmap(const QPixmap &pixmap, std::size_t index);
+    void insertPixmap(QPixmap &&pixmap, std::size_t index);
 
 private:
-    const std::vector<QPixmap> &m_pixmaps;
+    std::vector<QPixmap> m_pixmaps;
 };
diff --git a/src/editor/widgets/colorbutton.cpp b/src/editor/widgets/colorbutton.cpp
new file mode 100644
index 0000000..087768e
--- /dev/null
+++ b/src/editor/widgets/colorbutton.cpp
@@ -0,0 +1,43 @@
+#include "colorbutton.h"
+
+#include <QColorDialog>
+
+ColorButton::ColorButton(QWidget *parent) :
+    QPushButton{parent}
+{
+    connect(this, &QAbstractButton::pressed,
+            this, &ColorButton::selectColor);
+}
+
+ColorButton::ColorButton(const QString &text, QWidget *parent) :
+    QPushButton{text, parent}
+{
+    connect(this, &QAbstractButton::pressed,
+            this, &ColorButton::selectColor);
+}
+
+ColorButton::ColorButton(const QIcon &icon, const QString &text, QWidget *parent) :
+    QPushButton{icon, text, parent}
+{
+    connect(this, &QAbstractButton::pressed,
+            this, &ColorButton::selectColor);
+}
+
+void ColorButton::setColor(const QColor &color)
+{
+    if (m_color == color)
+        return;
+
+    auto pal = palette();
+    pal.setBrush(backgroundRole(), color);
+    setPalette(pal);
+
+    emit colorChanged(m_color = color);
+}
+
+void ColorButton::selectColor()
+{
+    QColorDialog dialog{m_color, this};
+    if (dialog.exec() == QDialog::Accepted)
+        setColor(dialog.selectedColor());
+}
diff --git a/src/editor/widgets/colorbutton.h b/src/editor/widgets/colorbutton.h
new file mode 100644
index 0000000..a3709b9
--- /dev/null
+++ b/src/editor/widgets/colorbutton.h
@@ -0,0 +1,28 @@
+#pragma once
+
+#include <QPushButton>
+
+class ColorButton : public QPushButton
+{
+    Q_OBJECT
+    Q_PROPERTY(QColor color READ color WRITE setColor NOTIFY colorChanged USER true FINAL)
+
+public:
+    explicit ColorButton(QWidget *parent = nullptr);
+    explicit ColorButton(const QString &text, QWidget *parent = nullptr);
+    ColorButton(const QIcon& icon, const QString &text, QWidget *parent = nullptr);
+
+    QColor color() const { return m_color; }
+
+public slots:
+    void setColor(const QColor &color);
+
+signals:
+    void colorChanged(const QColor &color);
+
+private slots:
+    void selectColor();
+
+private:
+    QColor m_color;
+};
diff --git a/src/editor/widgets/drawingcanvaswidget.cpp b/src/editor/widgets/drawingcanvaswidget.cpp
index 5f84ca9..2e36e42 100644
--- a/src/editor/widgets/drawingcanvaswidget.cpp
+++ b/src/editor/widgets/drawingcanvaswidget.cpp
@@ -55,25 +55,20 @@ void DrawingCanvasWidget::setRightButtonColor(const QColor &rightButtonColor)
     emit rightButtonColorChanged(m_rightButtonColor = rightButtonColor);
 }
 
+void DrawingCanvasWidget::setTransparentBackgroundPattern(const TransparentBackgroundPattern &transparentBackgroundPattern)
+{
+    if (m_transparentBackgroundPattern == transparentBackgroundPattern)
+        return;
+
+    emit transparentBackgroundPatternChanged(m_transparentBackgroundPattern = transparentBackgroundPattern);
+    update();
+}
+
 void DrawingCanvasWidget::paintEvent(QPaintEvent *ev)
 {
     QWidget::paintEvent(ev);
 
-    QBrush brush;
-    {
-        QPixmap pixmap{32, 32};
-        {
-            QPainter painter{&pixmap};
-            painter.setPen(Qt::NoPen);
-            painter.setBrush(Qt::gray);
-            painter.drawRect(0, 0, 16, 16);
-            painter.drawRect(16, 16, 16, 16);
-            painter.setBrush(Qt::white);
-            painter.drawRect(0, 16, 16, 16);
-            painter.drawRect(16, 0, 16, 16);
-        }
-        brush.setTexture(std::move(pixmap));
-    }
+    const auto brush = makeTransparentBackgroundPatternBrush(m_transparentBackgroundPattern);
 
     QPainter painter{this};
 
@@ -106,33 +101,46 @@ void DrawingCanvasWidget::mousePressEvent(QMouseEvent *event)
             setPixel(zoomdPos, left);
             break;
         case Mode::Spray:
+            //TODO
             break;
         case Mode::Erase:
+            //TODO
             break;
         case Mode::Pick:
+            //TODO
             break;
         case Mode::Line:
+            //TODO
             break;
         case Mode::Polygon:
+            //TODO
             break;
         case Mode::Rectangle:
+            //TODO
             break;
         case Mode::Ellipse:
+            //TODO
             break;
         case Mode::RoundedRectangle:
+            //TODO
             break;
         case Mode::SelectRegion:
+            //TODO
             break;
         case Mode::SelectWand:
+            //TODO
             break;
         case Mode::SelectSpray:
+            //TODO
             break;
         case Mode::Text:
+            //TODO
             break;
         case Mode::Fill:
             floodFill(zoomdPos, left);
             break;
         case Mode::Replace:
+            //TODO
             break;
         };
 
diff --git a/src/editor/widgets/drawingcanvaswidget.h b/src/editor/widgets/drawingcanvaswidget.h
index 689a5d6..33d94f7 100644
--- a/src/editor/widgets/drawingcanvaswidget.h
+++ b/src/editor/widgets/drawingcanvaswidget.h
@@ -2,6 +2,8 @@
 
 #include <QWidget>
 
+#include "editorguiutils.h"
+
 class QPixmap;
 
 class DrawingCanvasWidget : public QWidget
@@ -11,6 +13,7 @@ class DrawingCanvasWidget : public QWidget
     Q_PROPERTY(float zoom READ zoom WRITE setScale NOTIFY zoomChanged FINAL)
     Q_PROPERTY(QColor leftButtonColor READ leftButtonColor WRITE setLeftButtonColor NOTIFY leftButtonColorChanged FINAL)
     Q_PROPERTY(QColor rightButtonColor READ rightButtonColor WRITE setRightButtonColor NOTIFY rightButtonColorChanged FINAL)
+    Q_PROPERTY(TransparentBackgroundPattern transparentBackgroundPattern READ transparentBackgroundPattern WRITE setTransparentBackgroundPattern NOTIFY transparentBackgroundPatternChanged FINAL)
 
 public:
     explicit DrawingCanvasWidget(QWidget *parent = nullptr);
@@ -50,6 +53,9 @@ public:
     QColor rightButtonColor() const { return m_rightButtonColor; }
     void setRightButtonColor(const QColor &rightButtonColor);
 
+    const TransparentBackgroundPattern &transparentBackgroundPattern() const { return m_transparentBackgroundPattern; };
+    void setTransparentBackgroundPattern(const TransparentBackgroundPattern &transparentBackgroundPattern);
+
 signals:
     void changed();
 
@@ -59,6 +65,7 @@ signals:
     void zoomChanged(float zoom);
     void leftButtonColorChanged(const QColor &LeftButtonColor);
     void rightButtonColorChanged(const QColor &rightButtonColor);
+    void transparentBackgroundPatternChanged(const TransparentBackgroundPattern &transparentBackgroundPattern);
 
 protected:
     void paintEvent(QPaintEvent *ev) override;
@@ -79,5 +86,7 @@ private:
     QColor m_leftButtonColor{Qt::white};
     QColor m_rightButtonColor{Qt::black};
 
+    TransparentBackgroundPattern m_transparentBackgroundPattern;
+
     std::optional<bool> m_currentlyDrawing;
 };
diff --git a/src/main.cpp b/src/main.cpp
index 7093d93..c8c4cd4 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -2,6 +2,7 @@
 #include <QCommandLineParser>
 #include <QLoggingCategory>
 
+#include "editorsettings.h"
 #include "mainwindow.h"
 
 Q_LOGGING_CATEGORY(lcVk, "qt.vulkan")
@@ -38,7 +39,9 @@ int main(int argc, char *argv[])
     parser.addPositionalArgument("project", "The project to open.");
     parser.process(app);
 
-    MainWindow mainWindow{parser.positionalArguments().value(0)};
+    EditorSettings settings;
+
+    MainWindow mainWindow{parser.positionalArguments().value(0), settings};
     mainWindow.show();
 
     return app.exec();
diff --git a/src/projectcontainer.h b/src/projectcontainer.h
index 0df972d..a722825 100644
--- a/src/projectcontainer.h
+++ b/src/projectcontainer.h
@@ -21,7 +21,7 @@ struct GlobalGameSettings
     };
     struct FullScale {
     };
-    std::variant<FixedScale, KeepAspectRatio, FullScale> scaling{
+    std::variant<FixedScale, KeepAspectRatio, FullScale> scaling {
         KeepAspectRatio{}
     };
     bool interpolateBetweenColors{};