Thank you for the feedback. I'll try to get the font options page
updated with some newer screenshots.
There's not a central place aside from this (older) page
where you can see a feature list, but I agree an updated list would be a good idea all around. DarqUI help files are common to basic and premium packages, so if you look in the Help window either in-game or in the utility, you'll see a number of newer features highlighted on the various component pages.
Patrons get posts on the Darq Side website when we publish new features and improvements, and they can see little Patreon logos next to many of the exclusive settings in the utility. But those are not visible in the basic utility.