3.12.0
  * Add Gdk/WindowScalingFactor tweak
  * Remove non-functional help menu
  * Support CSD windows with header bars (Alex)
  * Support changing shell overlay keyboard shorcut (Alex)
  * Support changing shell lock screen background (Alex)
  * Fix CSD header bar (Yosef)
  * Fix background color of startup apps tab (Alex)
  * Fix icon theme detection (Mattias)
  * Add another digit for font size tweaks
  * Allow localized searches
  * More robust startup application handling (Mike FABIAN)
  * Translation updates (many)