I have a vertical dock on the left and the right of my screen. Both have sub-docks, which always open horizontally. I would like to show icon reflections on the horizontally sub-docks, but not on the vertical dock.

Currently, it is only possible to check the "Don't show icon reflections on vertical sub-docks" which does not work for the (main) vertical docks. It would be nice if this setting would include all vertical docks (main and sub-docks).

Good point. I was going to say you could simply turn off reflections for the main vertical docks, but in truth that means reflections are also turned off for their horizontal sub-docks (which you want to keep).

I'll see what I can do for next release.