I have a 16:9 ratio 65" tall Da-Lite matte white screen which is to be used with a D-ILA projector. By the many threads I've read the gray type screen, like the commercially available "GrayHawk", is best for aiding black levels. So my question is there any way of either tinting or painting my white screen gray in such a way as to not ruin the screen. Seems like it is feasible, even desirable-but risky. Has anyone tried this?