A high-contrast theme for Typora, in light and dark, set in the typeface Airbus made for cockpit screens.
See it live › A page exported from Typora, in the theme's own fonts, with a switch for Legible Dark.
In 2010, Airbus teamed up with ENAC and the Université de Toulouse III to define a typeface for cockpit screens: easier to read, more comfortable, consistent across the cockpit. Two years later, Intactile DESIGN drew its eight styles. Every letter keeps its basic shape yet looks as unlike the others as possible, so none can be mistaken for another.
B612 takes its name from the Little Prince's asteroid, a tribute to the pilot and author Antoine de Saint-Exupéry.
Perfection is achieved, not when there is nothing more to add, but when there is nothing left to take away.
— Antoine de Saint-Exupéry, writing about aircraft design in Wind, Sand and Stars
Legible ships all eight styles, with Lato for headings.
- Download Legible and unzip it.
The folder holds only the theme:
legible.css,legible-dark.cssandlegible. - In Typora, choose Preferences › Appearance › Open Theme Folder.
- Copy everything in the unzipped folder there.
- Restart Typora, then choose Themes › Legible or Legible Dark.
The fonts come with the theme. Tested with Typora 1.12 on macOS.
Code blocks fit 80 columns. Wider windows fit 100 columns (from 1400 px) and 120 (from 1800 px), and tables widen with them. Box-drawing and block characters stay on the grid. PDFs print on white, with 80-column code on A4 and Letter.
Typora won't send a dark theme to the printer, so from Legible Dark choose Export to PDF, which comes out the same as Legible.
Legible is built to WCAG 2.2, the standard behind Section 508 and EN 301 549: every text color meets AAA contrast (7:1), borders and focus rings meet 3:1, and nothing is lost when you enlarge text or spacing. Its spacing follows ISO 9241-110's call for a consistent, predictable layout.
The theme is MIT. B612 and Lato are under the SIL Open Font License.