when using CSD, calling the resize functions on windows causes significant deviations due to the shadow. This could probably be worked around either in gtk or by exposing the get_shadow_width function at least, so that client programs know how large the error is and can take account for that.

Another issue that we've run into while porting things to CSD is locking the aspect ratio, in this case for a video player. Due to the constant size of the shadow compared to the size of the video, we have a non-constant aspect ratio for the entire window. We're currently considering snapping the window after resize operations or using an average value that hopefully gives minimal error. I guess there's no better solution for that?