Well, aesthetically speaking, I agree that the much-maligned black and brown stripes are slightly awkward-looking. Creating a wide range of incarnations for the Pride Flag is healthy, and allows those of us outside of the heteronormative cookie-cutter mold to speak out on issues that get blatantly ignored. Barcelona is the vibrant capital of Catalonia. Levitz reminds us that this particular flag was specific only to Philadelphia; besides that, not even the traditional Pride Flag itself is representative of an actual rainbow occurring in nature.
Eventually, indigo was removed so that the flag would contain an even number of layers.