Mushroom Spirits New Color?

So I logged on and found that I was now Birch, and Jungles were Pink? And I started wondering, if a Light-ish green tree can have it's callout be Pink, why can't other tree spirits get funky colors? So I want to have Mushroom Spirits get a Tan name! Is this allowed, for any and all ( probably just me) tree spirits vote to change their name colors? And can I put in a vote for Mushrooms to be Tan. Thank you.

I got rid of the mushroom group since there wasn't really any point in it, and nobody else was named just for their biome.
I made a change to the jungle group color by request because it was still the same color as oak. Also, there is no tan. These are the colors we're limited to.

I'm going to need many enchant levels and a Silk Touch Unbreaking diamond pickaxe. Than I shall show you! I have enough diamonds to move a skele spawner, and if I get the Silk Touch (actually, probably on a Shovel), I could be a true Mushroom. If I do, could that group's name be the darkish yellow brown? (The &6)