Start working the UI for pulling the sub theme from her git repository.
Improve custom theme functionality - updating sub themes.
Start using JS for updating the sub theme.
Display the subtheme seperetly from the othe themes.
Working on the UI.
Working on the UI.
Workaround on the pulling of the subtheme.
Adding message to the end of the process.
Minor UX fix.
Minor code review fix.
Create two speerate function for git and zip.
Updating zip thems.
Allow to set the hard coded values in order to override extracted folders.
Dissplay the selectd sub theme.
Merge pull request #5052 from openscholar/4948

WIP: Improve custom theme functionality - updating sub themes.