Look, I know Guild Tabards are part of a guilds identity. But I really think it would be nice for players to be able to fully customize their own guild tabards in color without being able to change the Logo and other details.
Some of us just want to not walk around in a good looking armor set and have the tabard throwing off all the style.
I know that is something that can be discussed inside a guild, but think about it this way. If someone has real problems with the colors while the others in the guild do not, it is not a good solution to change the tabard colors and look for all members of the guild to appease one or a few people.
But if we could individualize the tabard colors independently from the guild-preset used by the guild creator, players could at least make them more match without affecting all other people within the guild.
Also, the guild tabards could REALLY need a facelift in texture resolution, Blizzard.