On my git repository with CinePaint patches is the full screen mode changed. It uses the GTK funtionality. That mode is now window manager based and will not work with twm. The old code is still ifdefed for users who rely on that and compile it. Putting a full fledged solution like in gqview inside CinePaint would have been too much work.

New is as well resizing of frames in the flip book, to allow me to load a bunch of cameraRAW images and watch them much like in a slide show. Colour regions are updated for the colour server.

And last but not least a fix in now available, to let CinePaint run on non KWin and non Compiz window managers. I tested on twm.

The package is patched in OBS.