A few games use half-res alpha effects, including Mario Kart 8, Splatoon, and XCX. You should add some lines to your rules (or additional rules files) to get the most out of it.
[Definition]
titleIds = 000500001010ec00,0005000e1010ed00,0005000e1010eb00,ffffffff85887bc1
name = "Mario Kart 8 -...