Proton ReDone - Darker per Tinhoso

This theme switches official Proton Dark theme colors around, keeping its look and feel while making it more usable and user friendly.

The UI elements are more distinguishable, the search bar pops out more, the active tab is more readily recognizable.

It's a little darker than Proton ReDone - Dark, mainly due to the darker background used for the inactive tabs and the lighter active tab button.