This is also happening in unity8-session on zesty beta2 installation. If
you click the bottom of uss>sound>messages received page it turns grey
** Attachment added: "grey_bar_on_click.png"
https://bugs.launchpad.net/ubuntu/+source/ubuntu-system-settings/+bug/1628191/+attachment/4853653/+files/
Seems related to the stop button, probably should only set a height when
visible?
** Changed in: ubuntu-system-settings (Ubuntu)
Importance: Undecided => Medium
** Changed in: ubuntu-system-settings (Ubuntu)
Status: New => Confirmed
** Changed in: ubuntu-system-settings (Ubuntu)
A