Function Description:
The GFCLRLUM system variable is used to control the light level and dark level in single color gradient fill.
Type : Real 
Saved in : Not saved 
Initial value : 1.0000 
Range : 0.0 ~ 1.0
A tint gradient transitions toward white and a shade gradient transition toward black.
											  Article ID: 1580
											  Created: July 15, 2021
											  Last Updated: July 15, 2021
											  Author: GstarCAD MY /KW
											
Online URL: https://kb.gstarcad.com.my/article/gfclrlum-system-variable-1580.html