Panel with buttons in the game at the bottom of the screen

[CCCP84]

I have a rationalization proposal. There's a panel with buttons at the bottom of the game screen. It can be hidden. However, hiding it doesn't increase the overview area; it just hides the buttons and leaves an empty panel. I suggest that this panel collapse to open up more screen space. Currently, it's completely unclear what the collapse function is for.

Maybe it could be done like this: