)
The app.
The best solution is using the screen size to determine the best image to show. So if the screen size is 2560x1440, and you're trying to fit the image within twoa 600px boxes, you choose the medium previews instead of thumb. "[Here's a list":](https://github.com/philomena-dev/philomena/blob/582263540829847f60b0c874754d5c1a65e316ab/lib/philomena/images/thumbnailer.ex#L14) of all the versions you can choose.