use skin, not costume, for mag colors

src/login/character.rs

@@ -250,7 +250,7 @@ fn new_character<EG: EntityGateway>(entity_gateway: &mut EG, user: &UserAccountE
                     synchro: 20,
                     iq: 0,
                     photon_blast: [None; 3],
-                    color: character.appearance.costume as u8,
+                    color: (character.appearance.skin % 18) as u8,
                 }),
             location: ItemLocation::Inventory {
                 character_id: character.id,