GTK Themes on Wayland

[DMJC]

Hi,

I've started looking into MATE/GTK Themes on Wayland, I've used AI to generate a quick application which allows me to preview and set the GTK themes as well as the icon themes. So far I'm making it work with GTK 2/3/4 themes. It will only list themes which have both GTK2 and 3 implementations. But it can set the values for GTK 2/3/4. Do we want to keep this standalone, or bundle it in Wayfire Configuration Manager?

[luigifab]

I'm curious about differences for themes between X11 and Wayland?

[DMJC]

Marco is gone on Wayland, so we need to setup window border themes using Wayfire. Mate-appearance-properties segfaults on Wayland. I've replaced most of it already in a custom app I wrote. I link my app directly with Wayfire config manager (wcm) to handle the window borders. Adding support for Fonts is the last item I need to complete.

[lukefromdc]

matre-appearance-properties from mate-control-center 1.29 versions and git master does work with wayland but cannot set window border themes. In SSD these are decorator-specific in SSD but in CSD (which can be selected) are set as part of the GTK theme

[mark-herbert42]

well - there is a way to fix this. I am not good enough to do it so far, but for brave and skilled. There was once the attempt to make window decorator for wayfire that was using Marco (or metacity - do not remember exactly) theme and applying if for wayfire windows. In fact it was a mix of marco/metacity code and wayfire window decoration plugin, where wayfire plugin was providing the surface to paint frame and the marco code was doing the rest. This thing was not working well and it will not even compile with current wayfire bacuse it is abandoned long ago. And wayfire's decorators are in fact weird. Built-in one is very basic and not customizable (only color) - shadow plugin helps it in terms of look but a bit. Pixdecor is a bit more customizable but the design is a kind of fancy-artistic-gaming. So both Mate and Wayfire would benefit if such decorator will be created.

[lukefromdc]

Right now the only thing that works is ro use CSD to draw the decoration, and accept that Xwayland windows will look like crap. At leasr we fixed the problem in caja that was blocking windows from being movable in wayland CSD, and at least wayfire itself supports both CSD and SSD decorarions. Writing the plugin for this is beyond my current skills plus wayfire seems to me a moving target.

[mark-herbert42]

https://github.com/marcof-nikogo/metacity-decor

Here is the link to the initial attempt. FOr me this also beyound my skills, and wayfire had changed API a lot - they moved from hardcoded GLES rendering engine to the WLR_RENDERER usage so wyfire now can use vulkan renderer (but loosing most of its compiz-like features when vulkan is choosen). So now this thing will not even compile.

[lukefromdc]

This basically means the wayfire session can support but cannot depend on any 3ed party plugins for wayfire. Even if maintained at the moment that could change at any time unless we ourselves are the maintainers