In reply to Jeff Chandler.

Style how customizer works is changed little bit (no more kind of accordion), from first test, it feels faster and better overall.
Icon looks like cool feature, not sure about standard, currently I upload just .ico everywhere and its relatively ok. Don't feel much for uploading 15 different icons for purpose of favicon.

Press this ... I never tried this and can not imagine someone use it :)

Btw. if adding new menu item, its not really clear how to roll back second window after item is added.
Maybe some change to that "x Add items" after item is added will help for first job :) then its does not matter.
At all customizer looks really cool.