I'm also interested in a darker screen. Last night I picked up ingredients for cream and sugar, and also found that Folk Art has a couple of interesting metalics. I bought metallic gunmetal gray, and metallic sequin black. Have you tried either of these? I painted a panel using white, silver and gunmetal, and a second with just white and gunmetal. I added some gold to both as well. The results looked promising enough that I want to try some more mixes.