+- Graphics-mode booting now clears the screen to the current rEFInd
+ background color (rather than black) and does NOT display boot messages.
+ The intent is for a smoother transition when booting OS X, or perhaps
+ other OSes that don't display boot loader messages. In practice, this
+ effect will be tiny for many OSes, since the boot loader generally clears
+ the screen within a fraction of a second of being launched; but the
+ "flicker" of a rEFInd message in that time can sometimes be distracting.
+