Pqiv doesn't maximize images anymore

The image viewer pqiv used to zoom images to the edges of the screen, but now there is a thick black border all around the images (they aren’t fully zoomed anymore). I filed an issue with the developer, but they didn’t respond. Is there anything on my part I could do to solve this?

You could try and see what caused it and make a pull request to fix it. Either way it’s not really a homebrew issue.