Rainbow colored bread in the 90s?

[Dung_Beetle]

@Mangetout

I’ve found that people (including myself) react differently according to the source of the colour (assuming they know the source). Mashed potatoes dyed purple with food colouring would put me off. Purple mash made from blue potatoes positively excites me.
It’s a ‘natural’ vs ‘artificial’ thing - not entirely rational, but it’s a strong force.

I can eat green food, I can eat red food, as long as it’s supposed to be that color. Blue and purple, no can do. I guess there aren’t enough naturally blue foods for me to ever find it acceptable.