Changing color of modules includes two parts: 1. Changing colors of three pictures of each module (header, background and footer of that module 2. Changing text color, style and font etc. For ease of application, most of backgrounds and headers and footers are same in most of modules. For step 1, you go to img sub-folder located in theme folder. There check all headers, footers and backgrounds and change the ones you like. Here are some sample names: block_footer_myaccount.jpg This file is picture for block myaccount and its nature is footer block_header_myaccount This file is picture for block myaccount and its nature is header. block_category_item_bg This file is for block category and it is background part of module. Let me know if you are clear up to this point. If you are clear and successful, I write more about changing text size, form and type etc for modules.