I was frustrated not to be able to find that so after fighting with other
methods, I found the trick. The model of the SystemWindow should be
specified first as follow then the color can be declared.

MicroBrowser>>createSystemWindow

    | window |
    window := (SystemWindow labelled: self windowLabelString).
    window model: self.
    window setWindowColor: Color blue.
    ^ window

> I'm creating a mini browser and I would like it to have a color following
> the scheme of the other window. I tried several color:, colorBorder: to the
> systemWindow and the embedded pluggable list and other widgets but without
> success. 
> 
> I tried the setStripe... method but we I move it I lost the color ;(.
> 
> Is there a method that recursevely colorate a SystemWindow?
> 
> 
> Stef
> 
> 
>