Aimbot ESP Color Pixel Macro

After investigating i find-out how they do it.
its simple and bypass any anti-cheat system image macros, you can pick and chose what parts of a players body you want to shoot,
Its not easy they have to shoot you many times and miss until the micro finally picks the right spot to aim for.

I’m not sure how facepunch devs will patch this ESP Macro does anyone have any ideas of what can be done to stop this?