Returns a 5/6/5 rgb color code, that can be used with lcd.setColor
@status current Introduced in 2.2.0
r
(integer) a number between 0x00 and 0xff that expresses te amount of red in the color
g
(integer) a number between 0x00 and 0xff that expresses te amount of green in the color
b
(integer) a number between 0x00 and 0xff that expresses te amount of blue in the color
number
(integer) rgb color expressed in 5/6/5 format
Only available on Colorlcd radios