When closing the test pane it leaves a blank bar on the screen. The blank bar stacks up, so when you're opening and closing the test pane you'll end up with multiple bars which consume your screen estate.
It doesn't matter if i close it with the cross icon or with ctrl+cmd+x shortcut
Atom version: 1.7.4
Seti-UI theme: 1.2.3
Seri-Syntax: 1.0.1
Re-installing the package doesn't work.