>>3481336Not familiar with it. You should have 3-4. 2 probably as well. Look up usage of luts or 3dluts for gimp. I just used inbuilt adobe 3dlut. It can be skipped. 1 auto snaps individual channels. You can manually do the same by going by each individual colour channel and just playing with marked sliders. You clip each until it's touching histogram on each side of the individual colour channel. It's usually done as white balance correction on dark images.