With the partial theming support (https://wiki.dendron.so/notes/lb9wd7z62ch7b4slscp05i4/), is it possible to change just a single property--the background of transparent images for example--while keeping everything else adapting to the current VSCode theme? (this was brought up in one of the theme-related issues: https://github.com/dendronhq/dendron/issues/1937)