in screenshots lighbox thingie, make background transparent

[maelle]

No description provided.

[maelle]

biati-digital/glightbox#389

[maelle]

also try to change the space it takes on the screen.

[jeroen]

There also seems a lot of whitespace in many screenshots. Is it possible to take future screenshots on a display with a lower resolution, or zoom in to the point that, less space in the image is used for margin whitespace? E.g. compare

And

[maelle]

I had set the width and height to respectively 1920 and 1080. What's the width you're using?