Jesus christ blizz, we get disguises in quests(bastion vestment), we get new gear, we get toys that give you good looks(just got a t3 set from naxx toy), and cant enjoy them thanks to SHADOWFORM, but sure in cinematics it turns off automatic because even devs know its BAD
PLEASE PLEASE
Been that way forever. But I do agree - there should be a glyph same for balance druids.
I have to agree my wonderful mog outfit I worked very hard to get isn’t seen cause shadowform is just too bloody dark…I mean look at this cute little Gnome in her outfit…
Heal like a proper priest 
It never use to be this bloody dark now years back…
Turn it off if you gotta see what your dammed mog looks like. Turn it back on to fite. Just like druids do.
Nobody is looking at you. They don’t care what you’re wearing.