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@SweetAIBelle @yassie_j IDK, I don't do #UI.
Maybe @fuchsiii as a #Frontend #Developer can enlighten us.
I'd say that #SkinlessUI is the one you can't "skin" and #LifelessUI is whatever the feck Microsoft does since (including) the #MetroDashboard on the #Xbox360 / #XboxOne and #Windows8...