Prinzipien is a Typst theme for Touying presentations, built on the design principles of Jean-luc Doumont’s Trees, maps, and theorems: one message per slide. Each slide states a single, full-sentence message as its title, set flush against a wide left margin, and a single accent colour — with tints derived from it — does all the visual work.

• One message per slide — the slide title is a full sentence stating the takeaway.
• A wide, Doumont-style left margin that structures every slide.
• A single accent colour, with tints derived automatically for emphasis and de-emphasis.
• Automatic overview slides — preview, section transitions, and review build a map of your points.
• Batteries included — a title slide, appendix numbering, and logo support.
• Configured in one place — aspect ratio, margin width, colours, and logo.

Showcase

The slides above come from the examples/demo.typ deck, which relies on the theme’s defaults; examples/full-demo.typ exercises every configuration option. Both live in the source repository.

Installation

Prinzipien is published on Typst Universe, so no manual installation is required. To start a new presentation from the bundled template:

typst init @preview/prinzipien

Or import the theme into an existing document:

#import "@preview/prinzipien:0.1.3": *

Requirements

• Typst 0.15.0 or newer.
• The Noto Sans and Noto Sans Mono fonts (bundled with Typst). Override them with your own set text(font: ..) rules after the theme’s show rule if you prefer different fonts.

Usage

Apply the theme with a show rule, then write one message per slide as a level-2 heading:

#import "@preview/prinzipien:0.1.3": *

#show: prinzipien-theme.with(
  config-info(
    title: [One sentence to remember],
    author: [Ada Lovelace],
    date: datetime.today(),
  ),
)

#title-slide()

== Give every slide a full-sentence message

The heading carries the takeaway; the body only supports it.

Highlight the words that matter with #alert[..], mark the main points of your talk with #point[..], and let #preview() / #review() build the overview maps automatically. See template/main.typ for a complete starting point, and the examples/ directory in the repository for fuller decks.

Configuration

prinzipien-theme takes a handful of options, all with sensible defaults:

Contributing

Contributions are welcome. This repository uses mise to pin tool versions and hk to run formatters and checks:

mise install               # install the pinned tools (Typst, hk, typstyle, ..)
mise exec -- hk run fix     # format and auto-fix
mise exec -- hk run check   # run checks that cannot be auto-fixed
mise exec -- hk run lint    # verify package-submission compliance

Please run the formatters before opening a pull request, and open an issue for larger changes first. Bug reports and feature requests go to the issue tracker.

Authors and Acknowledgment

• Lukas Grassauer — author and maintainer (lukas@grassauer.eu).

Prinzipien builds on Touying and follows the design principles of Jean-luc Doumont’s Trees, maps, and theorems (2009).

Parts of this project — code, examples, and documentation — were written with the assistance of an AI coding agent (Anthropic’s Claude Code) under the author’s direction and review. If you would like to audit the prompts see plans.

License

Distributed under the Boost Software License 1.0 (BSL-1.0). See LICENSE.txt for the full text.