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devtool

devtool

Heading Font

Red Hat Display

Body Font

Red Hat Display

Mono Font

Fira Code

Open-source identity. Red Hat Display balances geometric precision with humanist warmth, creating a type system that feels both technical and approachable — exactly what developer tools need.

Package Manager

Preview

The quick brown fox jumps over the lazy dog

Typography is the art and technique of arranging type to make written language legible, readable, and appealing when displayed. The arrangement of type involves selecting typefaces, point sizes, line lengths, line-spacing, and letter-spacing.

Good typography is measured by how well it reinforces the meaning of the text, not by some abstract scale of merit. Typographic subtlety can be just as important as typographic boldness.

A beautiful pairing

When Red Hat Display meets Red Hat Display, magic happens. This combination creates a perfect balance between impact and readability.

// Install this pairing
npx shadcn add https://www.fonttrio.xyz/r/devtool.json

Type Tester

Size

Custom Text

Red Hat Display 400 / 64px
The quick brown fox jumps over the lazy dog. Pack my box with five dozen liquor jugs.

Click to edit text

In Context

March 7, 2026

On the Craft of Typography

Typography is the art of arranging type to make written language legible, readable, and appealing when displayed. It involves selecting typefaces, point sizes, line lengths, line-spacing, and letter-spacing.

The Details Matter

Good typography is invisible. Bad typography is everywhere. The reader should never have to fight against the presentation to get to the content. Every choice serves the text.

Typography exists to honor content.— Robert Bringhurst
// Typography scale configuration
const scale = {
  h1: { size: "2.25rem", weight: 700 },
  body: { size: "1rem", lineHeight: "1.6" },
};