# Principles

The four ideas behind every decision in the system.

- **Plain**: Nothing decorative. Every colour, border and shadow is there to make something clearer.
- **Familiar**: Native HTML elements, the system font, conventions managers already know from the web.
- **Accessible**: WCAG 2.2 AA out of the box: contrast, labels, focus and keyboard use are built in.
- **One way**: Each thing has one recommended way to build it, so apps built by different people, and by AI, come out the same.