FOUNDATIONS

The primitives everything else is built from.

Checkpoints' visual language is unusually constrained: no rounded corners, a pixel typeface, a single icon family, and a palette that has to hold up across twelve wildly different themes. These are the rules that make that work.

Color & themes

Roughly 50 custom properties per theme, twelve themes deep. How the palette is structured and why --action exists alongside --primary.

Typography

Departure Mono for every role — one face across header, body and mono. The previous Geist Pixel + JetBrains pairing is kept as a swap-back record.

Spacing & shape

Tailwind's 4px scale, and why zero radius turns out to be the default rather than the rule.

Iconography

One pixel icon family, 5,504 glyphs, two rendering strategies — one of which is a bug waiting to happen.