RainWings are one of the most accepting tribes when it comes to gender and sexuality. A lot of it comes down to their naturally easygoing nature and strong community bond.

Genderfluid RainWings change colour to indicate their preferred pronouns.

Courting dragons boast flamboyant patterns emulating the colours of their orientation flag (maybe they have different ones in Pyrrhia, maybe they have the same; I just like the idea).

Wedding ceremonies are a rare occurrence, but when they are held they're exquisite: lush flowers and intricate decorations and beautiful colours. Every dragon is accepted.

There's also a whole lot of polyamorous relationships sort of mingled in the tribe, hence the relaxation over parents and the such.