Add ability to change UI background color

Just a minor suggestion. I have the UI disabled currently due to complaints it was in the way. If we had an option to make the UI background transparent easily I think this would be helpful.

Similiar scenario here.  I wish it was only active while you were in your headquaters base.

@EdmontonsRust unfortunately that would cause a performance hit because the server has to tell the game client to show/hide the UI.  Therefore it would have to constantly monitor every player's position to see if they're near a HQ.  I'm aware of this concern of blocking the view but just not sure how else to go about it.  Maybe if its very small and in the bottom?  If you have any ideas let me know. 

@digital0iced0 Is there anyway to latch/unlatch when a player is near the HQ TC?  If not, maybe make the banner 1/3 to 1/2 the origional size just so it isnt as big?