Color fix for white themes (TV Guide)

Some icons (like the characterart) appeared black in TV Guide in white themes.
Merge pull request #576 from CutSickAss/patch-1

TV Guide: Color fix for white themes
small fixes
added border for button texture
cleanup
formatting
Merge remote-tracking branch 'origin/master'

Conflicts:
	1080i/Font.xml
	1080i/Includes_NextAired.xml
	1080i/variables.xml