File screenkey_icon.patch of Package screenkey
diff -urEbwB screenkey-screenkey-0.9/data/screenkey.desktop screenkey-screenkey-0.9.new/data/screenkey.desktop
--- screenkey-screenkey-0.9/data/screenkey.desktop 2016-05-16 00:34:47.000000000 +0200
+++ screenkey-screenkey-0.9.new/data/screenkey.desktop 2018-11-29 13:52:31.934539127 +0100
@@ -2,7 +2,8 @@
Version=1.0
Type=Application
Name=Screenkey
+GenericName=Screenkey
Comment=Screencast your keys
Exec=screenkey
-Icon=preferences-desktop-keyboard-shortcuts
-Categories=Utility;
+Icon=accessories-calculator
+Categories=AudioVideo;AudioVideoEditing;