Just be careful. Paint is very important on a bike shed. If you spend too long arguing you will end up with the weather destroying your bike shed. This was the point, but it is missing something critical.

Color is important even though it serves to objective purpose. Some colors blend in well making an ascetic whole neighborhood better - but even that way can go too far and you get a monotonous mono-tone which is worse than clashing colors! There is - and can be - no agreement on what is best (I'm color blind: I can see colors but not the same way most people do and so even if there was some objective perfect - it would still be different for me vs normal people), but we should spend some time figuring out colors.

The important thing is to give everyone time to think, then express their opinion in a way that everyone else listens to understand (as opposed to listen to rebut) and then we come to a good compromise - understanding letting someone else win is often the best compromise - things like meeting in the middle can be worse!