This may already come with the macOS UIKit (I am not a developer) but it would be nice to have a clean look with the upcoming macOS Mojave Dark Mode UI.
I'm happy to report that Royal TSX 4.0 has been released and includes this feature.
For more information about the major new features of Royal TSX 4.0, please head over to our major upgrade landing page.
Thanks! Downloading Mojave now
somehow I missed your post. I've moved it to the correct forum now.
Royal TSX V4, which has been available since July as public beta offers full dark mode support on macOS Mojave.
Sorry, I meant to put this in the Royal TSX forum ideas.