Screw Jam: Unscrew Pin Puzzle

the screws have to be removed in color order but the colors are hard to discern. I am only mildly red-green color blind yet having a lot of difficulty. please consider using colors which are known to be easier for us. also the rods are sort of translucent, which I suppose is designed show which pins are covered up. however it makes it harder to distinguish the colors. a partially obscured red pin appears the same color as an orange pin the standby bar, for holding pins of the wrong color, does not automatically empty when the pin is gray& on the bar, and suitcase is gray. your only option is to do that level over again.