Hello, I noticed that Breeze-gtk theme had SCSS sources in https://github.com/dirruk1/gnome-breeze.
But now this repository is adandoned, and the KDE repos don't include SCSS sources. Does anyone knows why this happened? Because of lack of sources, Breeze-gtk and Breeze-Dark-gtk are not syncronized in some places (see e. g. https://bugs.kde.org/show_bug.cgi?id=389709#c4). There was also a good script to change the colors in SCSS to match the current color scheme. It was better than patching themes manually if the default colorscheme changes. Also, with the old approach, colorscheme support could be added (but recompliling must be done each time). -- Alexander Kernozhitsky