The ones on the Camaro above are deep concave rears, normal concave fronts. With the Camaro, there simply isn't a lot of room for concave wheels, due to the high positive offset and the big Brembo calipers. Also, these wheels were designed to fit a wide range of vehicles, so they couldn't go super concave on them. Most newer cars don't have the deep offsets.
Yes, the textured colors are more semi-matte-like. I prefer the textured versions over the normal matte colors.