wtf middle half of my comment got eaten for some reason. Anyway, I was going to explain how the item color grade is meaningless middle-late game since you get the best ones anyway, and whats really important is item quality. But I cba to retype all that.
Kizure - drop item enchantment grade varies significantly according to type of monster you are fighting {grunts statistic (or something like that), which determines the actual stat numbers on items you get. It is heavily influenced by your Combat Power vs theirs + luck, and there is a trick to maximize item quality per map. See wiki page for Drops. Now this ratio could be useful to see, but i doubt we will, most of the derived stats in the game are not shown.
 "Battle without End"){kind=icon}
 "Starship Commander"){kind=icon}
 "Incursion"){kind=icon}