Cirlce on top right of gear picture - what is it

Hi

I can not seem to find an answer so apologies if already asked.

What is the significance of the coloured circle that appears on your gear at the top right of the picture of the gear icon?

Cheers

It shows the current dye color of the gear in question. (:

thanks for that.....knew it would a simple answer that i should have worked out lol...wont say how long it has been bugging me for!

just after i posted i thought maybe it was to do with color (i did originally think it had something to do with materia).

i would swear though that i have several same items that look the same with different circle colors. Guess will check when i get on tonight.