One of the UI mods I have been using is the TTFR which replaces the gaudy font native with vanilla Minecraft with truetype fonts. This serves to refine the already beautiful enhancements added by the RPG-HUD.

With both mods installed, everything becomes quite small and difficult to read (44" monitor W/ 1920x1080 Res). The fonts can be resized to become legible, however, they quickly outgrow the Hud Elements.

Seeing as you are writing right now.
THis is on my TO-DO list (highest priority besides bugs) nad has been requested countless times.

Ok, I'm also getting around to contacting Quick Hotbar about the ability to relocate their mod UI. lol..No rush, I'm disabled so I pretty much spend 8 or more hours a day working on my modpack project, if I pop in a lot it's simply because it's become a hobby for me. Wish I could code, I'd like to be of more use lol.

Ah no worries. any (constructive) feedback is always welcome!
And learing to code sounds harder than it is.
And btw. if you want o actually discuss some stuff github isnt really the place for it (how about you join me on my discord - freshly made)? Link is in the top of the curse page of my mod.