Color scheme chooser dots widget
Apps like Apostrophe and Text Editor have custom implementations of this pattern already, and it's going to be needed in more apps soon.
Some things to keep in mind:
- The widget should be flexible enough to accommodate different kinds of use cases (e.g. sepia mode, and other kinds of custom color schemes)
- Do we want to support other kinds of color choosers too, which don't actually recolor the entire app (e.g. Notejot's per-note color chooser)?
- If and when we get a real system-wide dark mode, this will have to handle the "automatic" case as well, where you want the app to follow the system preference
Initial mockups: https://gitlab.gnome.org/Teams/Design/os-mockups/-/blob/master/prefer-dark/prefer-dark.png