I'm going to call this a bug in gst-plugins-good1.0 too. Because it sounds like libvpx is failing to use transparency in libgstvpx.so, yet working in FFmpeg (ffmpeg -c:v libvpx-vp9).
** Also affects: gst-plugins-good1.0 (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-control-center in Ubuntu. https://bugs.launchpad.net/bugs/2077117 Title: settings - mouse&touchpad - scroll direction images empty To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-control-center/+bug/2077117/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs