[Chimera-users] Dim colors in Chimera on OS X 10.10 public beta (Yosemite)

Hi, I'm currently using Chimera on my Macbook running the public beta of Yosemite. The colors of the molecules appear very dim and they are hard to recognize, as can be seen in the attached screenshot. In this example, the lipid chains are colored orange, while the water molecules should by cyan. The colors in the menu Actions --> Color seem to appear with their correct brightness, although. I also tried the daily build of the alpha version of Chimera, but the problem persists. Is this problem related to Yosemite? Or do I have to adjust some settings? Thanks a lot, Jethro