I am new to this tool but have lightly used photoshop and gimp before. I am looking for a way to take an image and invert the colors . Black becomes white, blue to orange, red to green... etc.
I see there was a post regarding this in 2013 and the answer was at that time "you can't". it is now 2020 so I thought I would ask to see if there is now a way to do it.
thank you