simple and useful addon: Image Filter
(Shop by color, Shop by Brand, Shop by Designer, etc.)
[attachment=6622:image_filter.png]
[color=#ff0000]Backend:[/color]
[attachment=6623:image_filter2.png]
Price: $35
[color=#ff0000]URL:[/color]
[url=“http://cs-cart-skins.iecsp.com/cs-cart-3-addons-image-filter.html”]http://cs-cart-skins.iecsp.com/cs-cart-3-addons-image-filter.html[/url]