QT: why do the backdrop colors don't match?

[William de Smet]

Hi there,

This thing never occured to me so I don't know why.
I use RR 2.7.x on a mac and my stacks have a red backdrop.
When I play the stacks on Win XP at work with the latest RR Player  the
backdrop is blue.
(I checked different colors but the same thing happens).

This has something to do with a different color schema (Mac/PC)?
How do I get the colors the same? Must I use RGB colors?
Can anyone confirm this?

Greetings,

William de Smet