A term I haven’t seen before but will coin is amicusrose, a combination of being amicussexual and amicusromantic. Being amicusrose means sexually and romantically you only are attracted to someone once you first become friends.
I somewhat recently discovered I was such but found out there was no flag, so I spent a good chunk of time creating one!
Colours meanings -
Teal - entering the stage of friendship, almost like entering water. Teal is also a colour for friendship
Yellow - A colour signifying friendship a bit more developed, warmer than teal
Orange - the transitioning/discovery point when you realize you have attraction for a friend, which leads into the next colours
Magenta - Romantic attraction
Pink - sexual attraction (like the original Gilbert Baker pride flag’s meaning of the colour)
Lavender (the center) - the core that separates but also allows harmony between sexual and romantic attraction, as well as being a colour associated with queer people for decades