Adds functionality for changing background color of HUD.
Dims background.
Dims background and stubs out methods for building gradients based upon set color.
Attempts to adjust location of dim background based upon HUD position.
Attempts to fix background dimming.
Improves dimming background.
Cleans up some redundant code.
Reverses gradient for basic dimming.
Stubs out some methods for moving the dimmed background center.
Replaces commented out methods for changing center of dimmed background.