Kief color questions - moonrocks

Hey all, was not sure where to post this question really.
So I have seen some adds at dispensaries showing moonrocks coated in purple or pink kief. I know that kief can come in multiple shades of green but is purple and pink really possible? Are they adding things to change the color? Or is it just some basic photo editing?

I love keif and the greener it is the shit tier it is.

As for other colours that you mention, something must be added or dyed.

Proper keif is golden in colour and its fucking lovely for canabutter.

Yeah I was mostly curious what is used to change the color and if it’s safe for consumption. I wanna get a pollen press for kief.