I believe that how Purple is the pride colour for gays and lesbians, wouldn't it make sense if Blue was for heterosexuals and Indigo was for bisexuals? As Indigo is directly inbetween Blue (for heterosexual) and Purple (for homosexuals) creating a bit of both (bisexual) Again please don't feel offended, I will gladly take criticism however, but please be nice.
Well Pink is also another 'gay pride colour', and blue does stand for heterosexuality as well. Hence, the bi pride flag:
Why do we even need to associate ourselves with a colour? Or a flag at that matter... I guess I'll just never see the fascination in it all, could someone try and change my mind? I just find it to be very alienating, like we've come from a different country or planet.
I've never liked the look of the pride flag. It's not that I don't like the flag and the concept behind it, but it looks too tacky to me. Call me picky. xD