Originally Posted by MSL_DK
Someone who can give me a hint about what is going on?
My opinion is to ignore the red, green, and blue lines on the luminance graph in HCFR. They normalized each of the red, green, and blue lines on the luminance graph. Unless red, green, and blue are approximately equal at 0% (black) and 100% (white) each of the lines on the luminance graph may not have much relation to each other, and the graph might not help you out, especially as a beginner with limited display controls. Your greatest errors are currently near 0% and 100%, so the red, green, and blue lines on the luminance graph likely have little relation to each other. For example blue is low compared to red and green at 100%, as shown on the RGB balance graph, but the luminance graph makes it look like blue matches red and green at 100%. Personally I think other software makes luminance for red, green, and blue a lot easier to comprehend for beginners. HCFR does have the RGB numbers that you can compare to "gamma Y" and each other, and HCFR also has the gamma graph where red, green, and blue actually relate to each other, but unfortunately most new users probably find a good luminance graph far easier to comprehend than trying to make sense of somewhat abstract RGB data and the gamma graph. Personally I doubt if most new users can make any sense out of normalized red, green, and blue on the luminance graph, so my opinion is to shut those items off.