Request the same for the theme plugins. This will enable theme designers to give flexibility to their themes with options like customizing the accent color, hiding/showing specific elements or changing colors for specific items of importance.
Currently, it is possible to access theme settings from the Installed Plugin page > Themes tab > choose “Open Settings” from the dropdown of a theme (if the theme has registered settingsSchema just like non-theme plugins)
I was able to get this functionality to work in my fork of Logseq but I am not sure how contribution to Logseq is done (couldn’t find any guidelines for that). I will be happy to contribute