Some of the old Stardock Design skins from previous versions of Windowblinds are cool, but they don't look right on Windows 11. Most notably, the Aura theme has weird gaps. I wish Stardock would go back and make fixed versions of their old skins!
There are also some inconsistencies between light and dark in the notification area.
Adamant without Start11:

I tried installing Start11 v2, and it makes things a bit better for this skin:

The old Aura skin is broken even with Start11 v2:

Aero Midnight looks okay but has a very low framerate for some reason:

Molten glitches out, though I wouldn't use it anyway, too distracting:


Incidentally, there have been at least two different Windowblinds themes called "Diamond".
Here's a diff between the two I have saved (plain text because the forum doesn't support "diff" or "text" as a code block type):
[TitlebarSkin]
SkinName=Diamond
-SkinAuthor=Stardock Design
-SpecialNotes=Copyrighted to Stardock Design © 2006
-AuthorsURL=http://www.stardockdesign.com
-Generator=Stardock SkinStudio Professional ver 5.0.1, Build 1112 - http://www.skinstudio.net
+SkinAuthor=Stardock
+SpecialNotes=This skin is copyrighted to Stardock © 2022
+AuthorsURL=https://stardock.com
+Generator=Stardock SkinStudio Professional
WBVer=500
[email protected]
+AuthorEmail=
EditorNotes=
Category=OS
+ActiveTitle=