I'm not Trans but I figured out how to make the Trans flag out of War Thunder decals, here's my Somua SM with the Trans flag. I could not find a way to make the Bisexual flag. It's made using the flag of Austria on top of a blue rectangle in the Italian decals. I put the Trans flag on most of my commonly used tanks. Anyway, Happy Pride Month! Sorry for the horrid image quality, it's easier for me to take a picture of my computer with my phone than to take a screenshot and go through a process of downloading it from steam.