Zen Cart Documentation
How to change store logo
To use your own logo, simply overwrite 'logo.jpg' ('logo.png') that is located in includes/templates/themeXXX/images/.
Upload a new image with the same title to the same folder on server, accepting the replacement.
You can create an image that is larger than the default one. If it doesn't match the header dimensions, you'll need to perform style modifications in the /includes/templates/themeXXX/css/stylesheet_tm.css file. You can locate the needed css rule with the help of developer tools.
How to change store colors
To change the site colors, you need to edit the CSS files in the /includes/templates/themeXXX/css/. You can learn more about working with the CSS files by checking the detailed video tutorials.