Theme Adjuster in Reaper 5?

I'm not clear what you're saying here, but I don't think it needed its own thread, and the theme forum is the best place for questions about themes. So I've moved your post into here. When making the the theme adjuster and the default 6 theme (I am the author of both), I made use of the latest theming developments in Reaper that were being added in the version 6 development cycle. Therefore, for them both to work correctly it is necessary for them to be used in a version of Reaper that includes those features.