As far as i know there are materia, something similar to "stones" you put in other games for extra stats.
I have seen common, purple and green colors of items, but are there any more? Like stronger orange or red? Or the color doesnt matter all that much?
Are there any sets of items that gives extra bonuses? Or anything like that? Could i change existing bonuses in certain item or there all are fixed and not possible change?
I want to know how it all looks like, because many games has different things and its really complicated sometimes to catch up with everything.