This article will explain the best practices for adding icon images to your Premium Menu Theme categories
Images uploaded to the Categories must ideally be for a 50x50px icon container. Because the Category icon container is so small, it's recommended that you use icons not product images, like the examples below, which are much closer to the 50x50px size.
Uploading product images that are larger that 50x50px size can result in blurry Category images.
