User Defaults for Application Integration
Create a new Application Integration EG Notepad and configure as normal.
Tick ‘Allow user’s own default’
Open userdefs.exe from C:\Program Files (x86)\Kutana\Kappris.
Set this to a different value EG Colour.
Check the registry as below:
Notepad_Print Mode = Colour (or whatever you changed it to.
You should now be able to use GPO to set this value in the registry as appropriate.