diff --git a/zeiterfassung/installs.pri b/zeiterfassung/installs.pri
index ec42827..5434983 100644
--- a/zeiterfassung/installs.pri
+++ b/zeiterfassung/installs.pri
@@ -1,67 +1,52 @@
-THEMES += themes/dark_theme.qss
+themesInstall.path = $${DESTDIR}/themes
+themesInstall.files = themes/dark_theme.qss
+INSTALLS += themesInstall
 
-copy_themes.input = THEMES
-copy_themes.output = $${DESTDIR}/themes/${QMAKE_FILE_BASE}${QMAKE_FILE_EXT}
-copy_themes.commands = $${QMAKE_COPY} ${QMAKE_FILE_IN} ${QMAKE_FILE_OUT}
-copy_themes.CONFIG += no_link
-QMAKE_EXTRA_COMPILERS += copy_themes
-PRE_TARGETDEPS += compiler_copy_themes_make_all
+darkThemeInstall.path = $${DESTDIR}/themes/dark_theme
+darkThemeInstall.files = themes/dark_theme/checkbox_indeterminate_disabled.png \
+                         themes/dark_theme/radio_unchecked.png \
+                         themes/dark_theme/up_arrow.png \
+                         themes/dark_theme/branch_closed-on.png \
+                         themes/dark_theme/checkbox_checked_disabled.png \
+                         themes/dark_theme/checkbox_unchecked.png \
+                         themes/dark_theme/checkbox_indeterminate.png \
+                         themes/dark_theme/stylesheet-branch-more.png \
+                         themes/dark_theme/checkbox_checked.png \
+                         themes/dark_theme/checkbox_unchecked_disabled.png \
+                         themes/dark_theme/radio_checked.png \
+                         themes/dark_theme/checkbox_indeterminate_focus.png \
+                         themes/dark_theme/checkbox_checked_focus.png \
+                         themes/dark_theme/branch_closed.png \
+                         themes/dark_theme/Vsepartoolbar.png \
+                         themes/dark_theme/radio_checked_disabled.png \
+                         themes/dark_theme/left_arrow.png \
+                         themes/dark_theme/Vmovetoolbar.png \
+                         themes/dark_theme/branch_open-on.png \
+                         themes/dark_theme/close.png \
+                         themes/dark_theme/stylesheet-branch-end.png \
+                         themes/dark_theme/stylesheet-vline.png \
+                         themes/dark_theme/down_arrow_disabled.png \
+                         themes/dark_theme/radio_unchecked_disabled.png \
+                         themes/dark_theme/left_arrow_disabled.png \
+                         themes/dark_theme/Hmovetoolbar.png \
+                         themes/dark_theme/close-pressed.png \
+                         themes/dark_theme/up_arrow_disabled.png \
+                         themes/dark_theme/branch_open.png \
+                         themes/dark_theme/radio_checked_focus.png \
+                         themes/dark_theme/sizegrip.png \
+                         themes/dark_theme/checkbox_unchecked_focus.png \
+                         themes/dark_theme/right_arrow_disabled.png \
+                         themes/dark_theme/Hsepartoolbar.png \
+                         themes/dark_theme/undock.png \
+                         themes/dark_theme/transparent.png \
+                         themes/dark_theme/close-hover.png \
+                         themes/dark_theme/radio_unchecked_focus.png \
+                         themes/dark_theme/down_arrow.png \
+                         themes/dark_theme/right_arrow.png
+INSTALLS += darkThemeInstall
 
-DARK_THEME_RESOURCES += themes/dark_theme/checkbox_indeterminate_disabled.png \
-                        themes/dark_theme/radio_unchecked.png \
-                        themes/dark_theme/up_arrow.png \
-                        themes/dark_theme/branch_closed-on.png \
-                        themes/dark_theme/checkbox_checked_disabled.png \
-                        themes/dark_theme/checkbox_unchecked.png \
-                        themes/dark_theme/checkbox_indeterminate.png \
-                        themes/dark_theme/stylesheet-branch-more.png \
-                        themes/dark_theme/checkbox_checked.png \
-                        themes/dark_theme/checkbox_unchecked_disabled.png \
-                        themes/dark_theme/radio_checked.png \
-                        themes/dark_theme/checkbox_indeterminate_focus.png \
-                        themes/dark_theme/checkbox_checked_focus.png \
-                        themes/dark_theme/branch_closed.png \
-                        themes/dark_theme/Vsepartoolbar.png \
-                        themes/dark_theme/radio_checked_disabled.png \
-                        themes/dark_theme/left_arrow.png \
-                        themes/dark_theme/Vmovetoolbar.png \
-                        themes/dark_theme/branch_open-on.png \
-                        themes/dark_theme/close.png \
-                        themes/dark_theme/stylesheet-branch-end.png \
-                        themes/dark_theme/stylesheet-vline.png \
-                        themes/dark_theme/down_arrow_disabled.png \
-                        themes/dark_theme/radio_unchecked_disabled.png \
-                        themes/dark_theme/left_arrow_disabled.png \
-                        themes/dark_theme/Hmovetoolbar.png \
-                        themes/dark_theme/close-pressed.png \
-                        themes/dark_theme/up_arrow_disabled.png \
-                        themes/dark_theme/branch_open.png \
-                        themes/dark_theme/radio_checked_focus.png \
-                        themes/dark_theme/sizegrip.png \
-                        themes/dark_theme/checkbox_unchecked_focus.png \
-                        themes/dark_theme/right_arrow_disabled.png \
-                        themes/dark_theme/Hsepartoolbar.png \
-                        themes/dark_theme/undock.png \
-                        themes/dark_theme/transparent.png \
-                        themes/dark_theme/close-hover.png \
-                        themes/dark_theme/radio_unchecked_focus.png \
-                        themes/dark_theme/down_arrow.png \
-                        themes/dark_theme/right_arrow.png
-
-copy_dark_theme_resouces.input = DARK_THEME_RESOURCES
-copy_dark_theme_resouces.output = $${DESTDIR}/themes/dark_theme/${QMAKE_FILE_BASE}${QMAKE_FILE_EXT}
-copy_dark_theme_resouces.commands = $${QMAKE_COPY} ${QMAKE_FILE_IN} ${QMAKE_FILE_OUT}
-copy_dark_theme_resouces.CONFIG += no_link
-QMAKE_EXTRA_COMPILERS += copy_dark_theme_resouces
-PRE_TARGETDEPS += compiler_copy_dark_theme_resouces_make_all
-
-STRIPLAYOUTS += strips/bookingstartstrip.ui \
-                strips/bookingendstrip.ui \
-                strips/timeassignmentstrip.ui
-
-copy_striplayouts.input = STRIPLAYOUTS
-copy_striplayouts.output = $${DESTDIR}/strips/${QMAKE_FILE_BASE}${QMAKE_FILE_EXT}
-copy_striplayouts.commands = $${QMAKE_COPY} ${QMAKE_FILE_IN} ${QMAKE_FILE_OUT}
-copy_striplayouts.CONFIG += no_link
-QMAKE_EXTRA_COMPILERS += copy_striplayouts
-PRE_TARGETDEPS += compiler_copy_striplayouts_make_all
+stripLayoutsInstall.path = $${DESTDIR}/strips
+stripLayoutsInstall.files = strips/bookingstartstrip.ui \
+                            strips/bookingendstrip.ui \
+                            strips/timeassignmentstrip.ui
+INSTALLS += stripLayoutsInstall