Changes the color used to draw on the screen by all the display functions.
The colors can be either
Most of the display functions only have one color, the foreground color. But some functions also have a background color:
INVERT color won't work with the drawCircle and fillCircle function, because the algorithm they use passes several times over the same pixel, so the color will toggle several times and be inconsistent.
- foregroundColor :
- backgroundColor (optional) :
INVERT. If no background color is specified, the background is transparent.