By default opencart the subcategories list in category page will be displayed as a text list without images. Now I'm gonna show you a few steps how to add thumbnail images above the category title.This tutorial applied to the default opencart theme and opencart version used is version 2.0.3.1Here is the steps:1. open file "catalog/controller/product/category.php" and find this code:$data['categories'][] = array(add this before the code above:if($result['image']) {$image = $this->model_tool_image->resize($result['image'], 200, 200); } else {$image = $this->model_tool_image->resize('..