Here is another module which helps the opencart users to list filters automatically on all category and sub-category pages. By default...
Tag : color filter for opencart

Color Filter Module Opencart v2
Replace the traditional filter module which uses select boxes for colors with this new style. Let your users select the colors and filter...

Color Filter for Opencart
For those who are looking for magento style, color filter.. here is a opencart version. This opencart Extension / opencart plugin enables...