Configuration
Configuration
So far you've learned how to write content. This section is about controlling how that content looks and behaves — colors, fonts, layouts, footers, themes, and exporting.
Almost all configuration happens in the frontmatter: the === block at the top of your .tac file. Some settings apply to the whole deck; others can be set on a single slide. Everything here has a sensible default, so you only ever write the parts you want to change.
In this section
Deck Properties — Metadata (title, author, date) and global styling (colors, fonts, background).
Layouts — The eleven built-in slide layouts and how to apply them.
Footer — Add page numbers, names, or a logo to the bottom of your slides, and control where they appear.
Themes — Use a built-in theme or build your own in a reusable
.ttfile.Property Reference — Every key Tachyonn accepts, with its synonyms, the CSS variable behind it and the default value.
Keyboard Shortcuts — Every shortcut for navigating, presenting, and drawing.
PDF Export — Turn your deck into a PDF from the command line, with animations preserved.
Start small
You can build a great-looking deck with nothing but a title in the frontmatter. Add configuration only when you have a specific reason to. There's no penalty for leaving things at their defaults.