Noodle has many theme settings. They are located within System Tools/Setting/Theme.
The theme setting has 5 categories.
Within these tabs, you can change almost every aspect of the appearance just using WYSIWYG. The CSS tab also allows more advanced users to tweak the CSS directly.
Pro Tip: We recommend trying both Top and Side navigation options as it really impacts the way your users consume content.
Pro Tip: We also recommend not using too many colours as it can make the site look too busy and your end users will not enjoy the experience.