Dark background for page thumbnails

Loving the app! Just a minor idea: When in dark mode, currently (as of v3.3.0) unused space on the bottom of the page thumbnails appears as a white background.

This is a bit jarring when the app is in dark mode (and especially if the content itself is dark too), it would be nice if this background wasn’t the brightest thing on the screen.

Thanks for all the great work!

I think this is a deliberate feature. The problem is that creating dark page backgrounds in thumbnails that are to be displayed on a dark background will be difficult to see. They would end up merging into the background, making them more difficult to isolate and select as individual pages.