No they don't... Its just that you are not accustomed to it...
Look closer... Its dark iron (level 1), grey silver (level 2) and bright/white silver (level 3). Anyhow, yes it is "harder" (but not impossible) to determine "excellent" from "extra excellent" essentially - especially if we look from afar. The RX-designs certainly reflects that somewhat, unlike the candy-like stuff in raw MTW. Besides, you always have the option to revert to that, or you could use the "blue silver" of level4, for level 3 or something... You are a modder, you know how to make it happen. The GFX is already done, you just need to shuffle it around some.
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