In the season 5 episode "Rapture", during the ceremony scene, in the background we can see a number of colourful flags.
One is quite clearly the flag of the Federation...
But there are at least two others that I can't quite identify. To my recollection, I don't believe I've ever seen these in any other episode. Given the nature of the episode, and that scene, it is reasonable to assume these are related to Bajor in some fashion, but I wonder if there is anything in the series that can corroborate that claim.
Is anyone aware of any information on these flags from any canon sources? (Note: I wouldn't mind anything non-canon either, if it is a reasonable statement).
As pointed out by Richard in the comments, the author of this website seems to have created very accurate looking representations of the flags in the background:
The website itself offers only speculation. Given what I have seen so far, it appears more likely these flags were only used in this one episode, and never seen again. Regardless, if I am wrong and there is additional information out there I have not seen yet, by all means let me know here.