Added icon

mainwindow.ui

@@ -13,6 +13,10 @@
   <property name="windowTitle">
    <string>MainWindow</string>
   </property>
+  <property name="windowIcon">
+   <iconset resource="resources.qrc">
+    <normaloff>:/zeiterfassung/images/icon.png</normaloff>:/zeiterfassung/images/icon.png</iconset>
+  </property>
   <widget class="QWidget" name="centralwidget">
    <layout class="QVBoxLayout" name="verticalLayout" stretch="0,0">
     <item>

resources.qrc

@@ -7,5 +7,6 @@
         <file>images/quit.png</file>
         <file>images/refresh.png</file>
         <file>images/today.png</file>
+        <file>images/icon.png</file>
     </qresource>
 </RCC>

zeiterfassung.pro

@@ -14,6 +14,8 @@ DEFINES += QT_DEPRECATED_WARNINGS
 # You can also select to disable deprecated APIs only up to a certain version of Qt.
 DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
 
+RC_ICONS = icon.ico
+
 SOURCES += main.cpp \
     zeiterfassung.cpp \
     mainwindow.cpp \