[Bug] When closing panel preferences, the thin red lines around the panel stay.
When editing a panel through panel preferences, thin red lines pop up around the panel in question. This doesn't work as expected.
Sometimes when editing the panel through panel preferences, no red lines appear. Sometimes they do appear.
Sometimes, even after closing panel preferences, these red lines stay. I have to click on panel preferences once again and close the window again for the red lines to dissapear.
I am using xfce4-panel 4.16.3-1.