We can control the pixel size the dither algorithm uses. In this case the "crunch" is set so to produce a one-to-one match between screen and image. On high DPI

We can control the pixel size the dither algorithm uses. In this case the "crunch" is set so to produce a one-to-one match between screen and image. On high DPI screens this gives a finer image, maybe too fine on really small screens. ... Of course we can go the other way as well. If you open up your inspector and change the "crunch" value then it re-renders immediately.