Just improve it as a whole. There are some out of place colors, windows, toolbars and other display errors (image attach is an example).

Most people prefer dark theme where I work, but I get this feedback a lot and many are back to the original one (white).

It just doens`t look good or with something off. Color gradings and pallet too. And some texts are hard to read. Level Display Manager is a good example for this, it really punishes those with a bad eyesight.

Revit and made good improvent with its dark theme if you guys want something to check.