setStrokeColorHsl method Null safety

void setStrokeColorHsl (
  1. int h,
  2. num s,
  3. num l,
  4. [num a = 1]
)

Sets the color used for stroking shapes. h is in degrees, 0-360. s, l are in percent, 0-100. a is 0-1.

Implementation

void setStrokeColorHsl(int h, num s, num l, [num a = 1]) {
  this.strokeStyle = 'hsla($h, $s%, $l%, $a)';
}