TwentyThree allows for the development of themes utilizing Frameworks such as Sass and Bootstrap, enabling designers to create rich video websites. The video below guides you through the creation of a theme from scratch, from the selection of layout blocks to styling on top of Bootstrap, to the addition of theme options to create themes that can be tweaked by any end user.

Elements when creating design themes in TwentyThree

- Getting started and activating your libraries
- Laying out the Front page
- Laying out the Video page
- Handling Video Thumbnails with Include Templates
- Styling using Bootstrap
- Theme Customisation options
- Theme Customisation options and Bootstrap variables
- Theme Customisation options and Liquid templates
- Exporting and Importing themes