Hello Christian,
It would be useful to contact technical support on
technical-enquiries@synaptics.com
However, I don't expect us to be responsible here.
DisplayLink driver does not get given objects from the compositor but a flat sea of pixels. We do not know it's part of a title bar, an icon or a background, we get a pixel.
All the composition of the different windows/elements is sent to the GPU by Windows which then hands over a composed desktop (hence my 'flat' reference) to the interface we use.
Regards,
Alban