TGSBAPixel = THSLAPixel;
Pixel color defined in corrected HSL colorspace. G stands for corrected hue and B stands for actual brightness. Values range from 0 to 65535
"HSL is the standard HSL colorspace, without gamma correction
GSB is the corrected HSL colorspace of LazPaint. It is computed with gamma correction and the B (brightness) component correspond to the perceived lightness"
"HSLA colors have gamma correction, but..."