another glitch
note: before you read this, just note that my ideas may have already been mentioned in previous posts
there seems to be a glitch with the background after exiting the party menu in the arena, because when you do so the equipment shop background appears and then fades to the arena background.
Also, an improvement that could be made to the equipment synthesizing is to show the stats of the equipment that you plan to make, so you can see if the stats are better than your current gear and whether or not it is worth it to synthesize that item.