Some of the styling for panes displayed by [Atom IDE](https://ide.atom.io) doesn't appear to be quite right. For example, this is the debugger pane: <img width="359" alt="atom-ide-debugger" src="https://user-images.githubusercontent.com/2833247/40169040-597dc776-59c5-11e8-9c0e-c3a195ed28fe.png">
