[header] How to customize the theme on a wikia wiki [title] Go to your wiki's home page. [step] It can be accessed by the url for your wiki, if you remember what it is. [title] Go to your admin dashboard. 
[step] This is where you'll find the page where you can make your custom theme, and it can be accessed at [title] Look for the " theme designer " button and click on it. [step] Clicking on that button will take you to the page where you can design your theme.