All icons to be used should follow this, so that the icons
look alike.

- size 20x20 pixels

- five color:
	#000000000000
	#BFBFBFBFBFBF
	#FFFFFFFFFFFF
	navy
	#B2B2ABABACAC

- two color:
	#BFBFBFBFBFBF
	black