Hi. I've been trying to figure out why when I click on some links from a Google search page that ultimately spawns a popup page, the background for the popup portion set to transparent. I am not sure if this is something that can be solved or not. In any case, thanks for this extension!
Here is a screenshot showing the result...
https://www.dropbox.com/s/gq1uv587vnclt25/dark theme issue 1.png?dl=0