Symbols distinguishing between good and bad pt2

Last week we discussed the problem of items that are the same but you get better versions of. Eg a mic you start off with a crappy one then get a better one, this type of item is slightly different to things like vehicles; you get completely new/different ones e.g old car then limousine.

Colour was suggested to help distinguish, I had chosen blue as the colour for items and I wanted to keep this umbrella colour so that you know it's an item. I came up with the star system last week which quantifies how good your mic is, but we needed a colour that let you know it's upgradable. So I've experimented a bit, I added colour to just the bottom so that left the majority of the item blue colour. I included an arrow pointing upwards that hopefully indicates its an item that you can upgrade. I tried a few different colours and didn't really like any of them till I tried tying it in with the stars. I think the two on the far right do work well and I've included the stars to help illustrate. It may not be a perfect solution but I think it's on the right lines. The ones on the left are not good I don't think, I've just included them to show my thought process behind it.