Q: Do you always wear black?
A: Not at all. Traditionally, we very often wear shirts of the most flamboyant colour and design. We certainly wear less black than all the other pop acts we can think of (and we can think of plenty). You shouldn't be that bothered anyway. What we wear is designed to be practical and/or entertain us, and we're far more interested in songs than fashion statements.
Apart from anything else, if we'd made fashion statements we'd probably have had the same short career as every other bunch of fashion victims. If anything, it would be sensible to deliberately avoid being fashionable anywhere, although we're not sure what that would look like, and we couldn't be bothered anyway. You have to remember that we live and work in different countries with very differing ideas of fashion, and we think global. White, for example, is a funereal colour in Japan and certain other Asian countries. Any attempt to make a fashion statement would be misinterpreted in nine tenths of the world. In nine tenths of Newcastle, it's a fashion felony to wear any kind of shirt at all, so I might as well settle for a skimpy little white number, or something in dayglo yellow. Nurse prefers Hawaiian.
A TV station or a magazine or a citizen with a particularly desperate agenda might insist on parsing statements that we're not actually making, exaggerating the importance of the occasional black sock, or reviewing clothes that we're not actually wearing; you don't have to make the same mistake.
If the songs are too difficult to concentrate on, or you're simply so sad that you have to draw substantive conclusions from what we wear, you should at least ignore those morons who need to discuss the kind of capes we wear. Because we've never worn any. The best thing would be to ignore us as well. Go find a band which is all about clothing. There are plenty of them.