It seems the category description only displays if you have a category logo, which I don’t want for every category. I have been using a workaround by using a 1x1 transparent png, but this also adds space between the category name and description that doesn’t look great. I would like to have an option of turning on the category description without having to upload an image.
Ah yeah, despite it being a 1x1 transparent png, there are some CSS margins in place that are causing the additional space.
It sounds like this could turn in to a feature, but in the mean time, this should be the CSS to completely hide the images (and their margins) for your categories that don’t have logos: