Fix background color during transition
Fix background color during transition

In Dark Mode the transition into a folder and back started and ended with a very noticeable white flicker. Now, the color will be updated before every transition.

mssun/pass-ios,mssun/passforios,mssun/passforios,mssun/passforios,mssun/passforios,mssun/passforios,mssun/pass-ios