Contrasting TukUI / ElvUI, I am creating a project to update the UI holistically, but I will be using Blizzard's textures and aesthetics rather than redesigning everything, making only minor tweaks adding the tiny features we all crave, all of them optional.
A true minimalist approach.
P.S. This project is still PRE-ALPHA and mostly a collection of personal tweaks to the standard Blizzard UI.
For backup. Feel free to steal any of this code. :P
If you do have any questions, just contact me via GitHub.