I'm trying to build in some of my own navigation tools by having a set of collections at the top of each browse page that lead back to other categories. I've created icons for these, but can't seem to get them to show up with sharp quality. I've tried both .jpg and .png at high resolutions, large dimensions, everything.
Any suggestions as to what I'm doing wrong. Below is an example of an icon, and what I'm seeing on my iPad mini.