Reliable way to close popup?

[bdharrington7]

Thanks for making this tool, it's really clean!

I was wondering, how do you reliably close the popup window when you click on a variable when stopped on a break point? I can click on another variable to inspect it (which closes the window), but to close the popup window without opening another one, I'm not sure if I have to hit the esc button, or clicking on some white space or what. There doesn't seem to be a consistent, quick way to close the popup.