The width of thumbnails is being adjusted so that they all fit on the screen at once. I think the expected behavior is for them to stay the same width, and if the screen gets too small to display them all, they can be scrolled with touch. That seems to be how it works on the demo on the website.
This is happening even with the most basic options set:
<FsLightbox toggler={toggleLightbox} sources={media.map((m) => m.url)} />
It happens with a small amount of items too.
Window wide enough for them to have their full width:
Window made as small as possible, thumbs are squished into the space:
The width of thumbnails is being adjusted so that they all fit on the screen at once. I think the expected behavior is for them to stay the same width, and if the screen gets too small to display them all, they can be scrolled with touch. That seems to be how it works on the demo on the website.
This is happening even with the most basic options set:
<FsLightbox toggler={toggleLightbox} sources={media.map((m) => m.url)} />
It happens with a small amount of items too. Window wide enough for them to have their full width: Window made as small as possible, thumbs are squished into the space: