diff --git a/rtdata/CMakeLists.txt b/rtdata/CMakeLists.txt
index c145f8ebb..3f73e8c40 100644
--- a/rtdata/CMakeLists.txt
+++ b/rtdata/CMakeLists.txt
@@ -1,11 +1,11 @@
 
-file (GLOB IMAGEFILES "images/*.png")
 file (GLOB PROFILEFILES "profiles/*.pp3")
 file (GLOB LANGUAGEFILES "languages/*")
 file (GLOB SOUNDFILES "sounds/*")
 file (GLOB ICCFILES "iccprofiles/*")
 # THEMEDIR includes subfolders for image resources for some themes; doing the normal glob won't work.
 set (THEMEDIR "themes")
+set (IMAGESDIR "images")
 
 if (WIN32)
     set(OPTIONSFILE "options/options.win")
@@ -32,5 +32,7 @@ install (FILES ${PROFILEFILES} DESTINATION ${DATADIR}/profiles)
 install (FILES ${SOUNDFILES} DESTINATION ${DATADIR}/sounds)
 install (FILES ${ICCFILES} DESTINATION ${DATADIR}/iccprofiles)
 install (DIRECTORY ${THEMEDIR} DESTINATION ${DATADIR})
+install (DIRECTORY ${IMAGESDIR} DESTINATION ${DATADIR} FILES_MATCHING PATTERN "index.theme")
+install (DIRECTORY ${IMAGESDIR} DESTINATION ${DATADIR} FILES_MATCHING PATTERN "*.png")
 install (FILES ${OPTIONSFILE} DESTINATION ${DATADIR} PERMISSIONS OWNER_WRITE OWNER_READ GROUP_READ WORLD_READ RENAME options)
 
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diff --git a/rtdata/images/Dark/actions/rtwindow.png b/rtdata/images/Dark/actions/rtwindow.png
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diff --git a/rtdata/images/Dark/actions/toleftend.png b/rtdata/images/Dark/actions/toleftend.png
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diff --git a/rtdata/images/Dark/actions/user-desktop.png b/rtdata/images/Dark/actions/user-desktop.png
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diff --git a/rtdata/images/Dark/devices/computer.png b/rtdata/images/Dark/devices/computer.png
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diff --git a/rtdata/images/Dark/devices/drive-harddisk.png b/rtdata/images/Dark/devices/drive-harddisk.png
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diff --git a/rtdata/images/Dark/devices/drive-optical.png b/rtdata/images/Dark/devices/drive-optical.png
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diff --git a/rtdata/images/Dark/devices/gtk-cdrom.png b/rtdata/images/Dark/devices/gtk-cdrom.png
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diff --git a/rtdata/images/Dark/devices/media-flash.png b/rtdata/images/Dark/devices/media-flash.png
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diff --git a/rtdata/images/Dark/devices/media-optical-bd.png b/rtdata/images/Dark/devices/media-optical-bd.png
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index 000000000..09babc056
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diff --git a/rtdata/images/Dark/devices/media-optical-dvd.png b/rtdata/images/Dark/devices/media-optical-dvd.png
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index 000000000..09babc056
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diff --git a/rtdata/images/Dark/devices/media-optical.png b/rtdata/images/Dark/devices/media-optical.png
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index 000000000..09babc056
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diff --git a/rtdata/images/Dark/devices/media-tape.png b/rtdata/images/Dark/devices/media-tape.png
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diff --git a/rtdata/images/Dark/index.theme b/rtdata/images/Dark/index.theme
new file mode 100644
index 000000000..8912f3f5d
--- /dev/null
+++ b/rtdata/images/Dark/index.theme
@@ -0,0 +1,42 @@
+[Icon Theme]
+Name=RawTherapee-Dark
+Comment=Dark theme for RawTherapee
+Inherits=hicolor
+Example=folder
+
+Directories=actions,apps,categories,devices,emblems,places,status
+
+[actions]
+Size=22
+Context=Actions
+Type=Fixed
+
+[apps]
+Size=22
+Context=Applications
+Type=Fixed
+
+[categories]
+Size=22
+Context=Categories
+Type=Fixed
+
+[devices]
+Size=22
+Context=Devices
+Type=Fixed
+
+[emblems]
+Size=22
+Context=Emblems
+Type=Fixed
+
+[places]
+Size=22
+Context=Places
+Type=Fixed
+
+[status]
+Size=22
+Context=Status
+Type=Fixed
diff --git a/rtdata/images/Dark/places/folder.png b/rtdata/images/Dark/places/folder.png
new file mode 100644
index 000000000..66c83e0b3
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diff --git a/rtdata/images/Dark/places/gtk-directory.png b/rtdata/images/Dark/places/gtk-directory.png
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index 000000000..66c83e0b3
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diff --git a/rtdata/images/Dark/places/user-desktop.png b/rtdata/images/Dark/places/user-desktop.png
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index 000000000..4b3e7ab6d
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diff --git a/rtdata/images/Dark/places/user-home.png b/rtdata/images/Dark/places/user-home.png
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index 000000000..8e1e020be
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diff --git a/rtdata/images/Light/.gtk-undo-ltr-small.png b/rtdata/images/Light/.gtk-undo-ltr-small.png
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index 000000000..867095e57
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diff --git a/rtdata/images/Light/.gtk-undo-ltr.png b/rtdata/images/Light/.gtk-undo-ltr.png
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index 000000000..4121f7e7c
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diff --git a/rtdata/images/Light/.gtk-undo-rtl-small.png b/rtdata/images/Light/.gtk-undo-rtl-small.png
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index 000000000..d6c019ba3
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diff --git a/rtdata/images/Light/.gtk-undo-rtl.png b/rtdata/images/Light/.gtk-undo-rtl.png
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index 000000000..fc948ed73
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diff --git a/rtdata/images/Light/index.theme b/rtdata/images/Light/index.theme
new file mode 100644
index 000000000..1188aa465
--- /dev/null
+++ b/rtdata/images/Light/index.theme
@@ -0,0 +1,42 @@
+[Icon Theme]
+Name=RawTherapee-Light
+Comment=Light theme for RawTherapee
+Inherits=hicolor
+Example=folder
+
+Directories=actions,apps,categories,devices,emblems,places,status
+
+[actions]
+Size=22
+Context=Actions
+Type=Fixed
+
+[apps]
+Size=22
+Context=Applications
+Type=Fixed
+
+[categories]
+Size=22
+Context=Categories
+Type=Fixed
+
+[devices]
+Size=22
+Context=Devices
+Type=Fixed
+
+[emblems]
+Size=22
+Context=Emblems
+Type=Fixed
+
+[places]
+Size=22
+Context=Places
+Type=Fixed
+
+[status]
+Size=22
+Context=Status
+Type=Fixed