On my computer the device pixel ratio is 1.25. I have a like button that animates on click. The stationary image is a bit blurry as it's trying to render a downscaled 24x24 image in a 32x32 grid of pixels.

This may be a helpful resource: https://developer.mozilla.org/en-US/docs/Web/API/Window/devicePixelRatio#correcting_resolution_in_a_canvas

I'm currently working on a fix for it.