So for me, fire red means a solid red, but I can see through them to the saddle. PFR means the color is so opaque, I can't see through.
I could be wrong, and it may be the angle of the pics, but they look pfr to me. Especially with the legs colored like that.
MABJ is absolutely correct in that names of reds give a good idea, but everyone has different opinions. That's why when I start selling my reds, I'm just having "Red Cherries," price, and showing a pic. People can decide what they want from that.