public Color adjustTone(float percent)
	{
		float multiplier = (100.0f + percent) / 100.0f;
		float l = Math.min(100.0f, hsl[2] * multiplier);

		return toRGB(hsl[0], hsl[1], l, alpha);
	}
Create a RGB Color object based on this HSLColor with a different
 Tone. Changing the tone will return a lighter color. The percent
 specified is a relative value.

 @param percent - the value between 0 - 100
 @return the RGB Color object
flatlaf-core/src/main/java/com/formdev/flatlaf/util/HSLColor.java