Features:
- save export options for spotify theme;
- show 'HiDPI' as theme option for GTK theme export;
- more color settings for Materia theme;
- use terminal colorscheme for error/warning/etc colors in Oomox GTK
themes;
- move all theme generators to separate git repositories.
Fixes:
- don't redraw theme options on theme switch;
- saving SpinButton for float values when value is 0;
- reset manually set colors when switching to auto/basic
terminal colorsheme;
- Oomox GTK theme: levelbar, frames, borders;
- some hardcoded colors in Materia theme;
- oomoxify: add more colors to replace and font weight in sidebar.