* First changes to ui
* Pre merge from main checkin
* Commit before merge from main
* Pre-merge from maon checkin.
* Commit before merge from main
* Commit before merge from main
* Pre merge from main.
* Old and new levels handled.
* New WelcomeScreenDialog.
* Fixed qss file errors.
* Removed unused file from cmake.
* Commit before change to development branch
* Final changes to WelcomeScreenDialog