Background gap in plugin’s settings

Hello, thanks for this great plugin! I’ve been testing it for the past few weeks and it is a really interesting concept, very nicely done!

I’d like to provide feedback on some things I observed, if you would like. Here’s one. When opening the plugin’s settings I noticed a small white gap in the background color that is not present anywhere else: https://imgur.com/a/Q9ch8en

Keep up the good work! And looking forward to a Pro version.