Build from the ground up, complete new. Has all current bug fixes. So if you find a new one please report them!
See https://github.com/MisterMakerNL/ExtremeProDark/blob/main/INSTALL.md
Feel free to discuss this theme and addon on https://forum.freecadweb.org/viewtopic.php?f=34&t=68973
Right Click/View Image too see in 4K
Share-a-like offcourse!