Incredibly creative and witty subject line

Marriage is love.

Where's indigo? Indigo discrimination! JK. I'm just curious why that color was taken out of the rainbow for the gay pride symbol. Does it mean something? Or just someone went, "How does that rhyme go? ROYGB... aw fuck it, his name is Roy G. Bv."

Gotten from kaijawest.
( It's just like Scruples! )