Merge pull request #32 from Condo97/main

Added allowsUndo

Merge branch 'develop'

Merge pull request #16 from Rminsh/main

Change background of editor based on theme

Disallow color changes

Fixes issue #12

We just override -changeColor: to do nothing.
Though this feels a little like a SwiftUI
issue.

Merge branch 'feature/auto-indent-1'

Do not use $0

... nicer.