Missing x icon on Settings

I would like to see a " X " or " Close / Back " or any other indicator on how to close the Settings tab. Maybe the gear icon should change to X - it took me quite a while at the beginning to figure out, how to get back the other tab on the left side

I think these groups of people would benefit from this idea: New Users

Why I think they would benefit from this idea: Not stuck in GUI

Any code or resources to support this idea: X

Are you willing to work on this idea?: Not a coder / Could provide some graphics.