Developer Theme
The Typemill Dev Edition is a development version of Typemill that includes a Dev Theme and a Demo Plugin. It’s designed as a hands-on learning environment for theme and plugin developers. You can download it from GitHub.

Theme Guide
The Dev Edition comes with a full Theme Guide that walks you through the structure of the Dev Theme. Each article in the guide corresponds to a file in the theme folder and provides detailed explanations, examples, and best practices for working with Twig templates and YAML configurations.
Features
The Dev Theme is a fully working theme that follows a number of best practices. It is a work in progress and will be updated regularly. You can participate and create pull requests if you add something useful that should be part of the Dev Theme. Please note that the Dev Theme should remain minimal and easy to use for frontend developers.

Some features included in the Dev Theme:
- A layout file with an HTML skeleton.
- An index file with flexible logic to include different page types dynamically.
- Different page types for folders, files, blog, posts, home, a glossary, and an individual template.
- A home folder with two example sections for a flexible landing page on the homepage.
- Partials for two different navigations, breadcrumbs, footer, header, paging, and widgets.
The theme also demonstrates how to create individual page templates that can be selected per page in the author environment. The example template includes a top navigation with flyout logic and a full-size content area with a background color.
Additionally, the theme shows how to make your theme configurable for features and design using CSS variables.