)
Sets the color used inside shapes.
h is in degrees, 0-360.
s, l are in percent, 0-100.
a is 0-1.
Source
/**
* Sets the color used inside shapes.
* [h] is in degrees, 0-360.
* [s], [l] are in percent, 0-100.
* [a] is 0-1.
*/
void setFillColorHsl(int h, num s, num l, [num a = 1]) {
this.fillStyle = 'hsla($h, $s%, $l%, $a)';
}