There is no visual congruence between Settings icons
In the main window you can see a gear to enter the settings.
In the settings view you can see a check mark to get back to the main window.
Both buttons are labeled "Settings".
For me this seens to be - visually and logically - a huge gap for users.
Any ideas to make it more congruent? E.g. an arrow button that indicates back to main window? ...