Menu Overhaul

-Added sweet background graphic of a sunset
-Fixed position calculations for MenuEntry to have origin in middle of
text
-Added rounded rect background for MenuEntries (for Contrast).
-In order to maintain resolution on the rect's corners, just construct
it manually (pain in the ass, but looks sweet)
-Actually delete starsBlue, starsRed, starsYellow as they are no longer
needed.
-Make the Options applicable to the game.