For a beautiful look and feel to our mobile application's catalog, it is necessary to add thumbnail images for main categories.
We are going to prepare images for each of the top-level categories and update categories to use those images in our mobile app.
It doesn't matter if we want to use the existing category images, or prepare new images, first of all, we have to resize/crop them to 80px x 80px at 72 dpi in order to be displayed properly on targeted mobile devices. If we don't resize them, they will break the layout of our mobile application and the category listing will not look very nice to the mobile users.
We can use any image-editing program to ...