**v2** - Correctly add IUISettings3 interface - Fix broken tests - Add dark theme tests
Not sure if it's fine to add IUISettings3 by itself without IUISettings first. IUISettings3 doesn't seem to be inherited.
The test in the debian testbot does not seem to be able to set registry keys. The test runs fine locally, but in the testbot it fails on the dark theme test. Is there a way to fix this?
Example (ignore the "Test succeeded inside todo block"): https://testbot.winehq.org/JobDetails.pl?Key=129115&f304=exe64.report&am...