yeah i'm betting that is a firemouth x cutteri. i have something similar that my bro called a yellow firemouth. ours weren't exactly that cross, but they did have both species contained within. so i would almost put money on that being what you think it is.
i don't have many pics of my tex x cons. i'll have to hunt the most recent ones down and get back to ya. my best female has about the same look as far as the pearls, but she is far different in overal color. she usually is nearly white with broken bars throughout her body. her pearls almost are a white/grey and not the average blue or green.