Comment 1 for bug 1452410

I'm going to confirm this but only partially. We legally cannot use the windows symbol as it is a registered trademark. We can however use the saint john's arms (⌘) since it is not a trademarked symbol. This represents the Command, Super, Meta, etc key. The naming is not consistent across all platforms, but it should be pretty apparent that this is *the* special key.

However I agree that the alt/option, tab, and shift symbols probably aren't as immediately recognizable as just writing "Alt" "Tab" "Shift"