To make the development of themes more efficient, it is recommended to install one of the Automad plugins for the editors listed below. Those plugins will add syntax highlighting for the Automad template engine as well as the most common snippets for autocompletion.
To install the Automad Atom package, look for language-automadunder Settings > Install in Atom.
In case you use Textmate 2 or any editor compatible to .tmBundle files, you can download the Automad Bundle here.