You don't have to put rainbows on anything if you don't want. I don't even use rainbows!
The main thing is, when you hear someone in a cishet group spouting homophobia, be the one to say "hey that's not cool". Lots of people say they're allies and put it on their social media and whatnot, but where it counts is just being able to stick up for us like you would for any mate when the time comes
Hey just a thought, but have you considered also measuring your labor in terms of hours worked by admin staff etc? I'm assuming it's unpaid.
I think showing the financials is great but to me it shows only one part of the picture, if that makes sense. Your work has value!
I really appreciate all the work that goes into this place, and really, thanks for all you do.