2.5.4.94 Shade

The Shade function decreases the luminance, as specified in the HSL color space, of a color value.

ABNF:

 Shade = val val " SHADE():128"

Required Arguments:

Name: Color

Type: vColor

An argument that specifies the color.

Name: Delta

Type: vSignedInt

An argument that specifies the amount to modify the luminance of Color.

Return Value:

Type: PtgColorRGB

This function returns a PtgColorRGB containing a color value with decreased luminance. If Delta is less than zero, the luminance is increased.