VobSub

[ToMaSh]

I searched in many places and tried playing with the settings myself but I still don't get it:
In the custom colors box there are 4 color boxes, what each box stands for?
can anyone help me?

[gabest]

Each dvd subpicture can have 4 colors chosen from the 16 color palette stored in the ifo file. There is no way tell which one of them addresses the outline, background or the filling color, it can be totally random.