Halloween Botany - Mander

I appreciate the skittles reference
Is it a skittles reference or is it a reference to purple not being an actual color and thus not a part of the rainbow?
the heck do you mean purple is not an actual colour??
Purple, the color directly between red and blue, is a creation of your mind interpreting a band of light that triggers your red and blue sensing nerves, but no green is sensed. The actual band of light we can see goes from red to green to blue. Purple doesn’t fall between those colors, meaning it wouldn’t be included in a rainbow, and isn’t any “pure” light you could see, since it doesn’t fall on the spectrum.
Your definition of color is based only on human perception? Is purple a color for a mantis shrimp?
Definition I’m using is any color that can be expressed as a single wavelength of light. Purple cannot be, since it’s actually two wavelengths simultaneously.
Perceiving it as a color seems more practical though. It’s not like we look at “red” and think “ah yes, a single wavelength of light”