Chosen Solution
My Mac has decided to add weird, entirely random, colourful psychedelic patches into my black and white photographs. This is extremely annoying. Does anyone know what might be causing this please? Thanks.
Not good ;-{ Did you drop or bang your system or at some point remove the display off to get inside? This looks like T-CON board issue within the display assembly. To be sure plug in an external monitor to the Thunderbolt ports to see if the problem is visible within it if not then the internal display will need to be replaced.
