[#157] complete moved theme to sub crate.

3 jobs for window-refactoring in 4 minutes and 53 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Build
passed #12339
build:linux

00:01:11

passed #12340
build:redox

00:01:56

 
  Test
passed #12341
test:linux

00:02:56