1. FRINGE — a dark halo on these edges means the blend is wrong
Handgloves 0O
2. MATCH — over a DARK background
Left is white at 50% alpha, right is opaque rgb(128,128,128).
Indistinguishable = correct blend.
Left visibly darker = straight alpha, which is wrong.
3. RAMP — should fall off evenly, not crush toward the dark end
100%
75%
50%
25%