Made [Color|Texture]Background use a new shader-based algorithm Former-commit-id: cfd319b33712c270726eb697e258d61db2ca6835
Former-commit-id: 2b84f8ea924714d81046f3dd29990939586e7622
Former-commit-id: 33bf0fbe727e50e864bc52680c95a106ada508e9