Theme builder

Start from a built-in, tweak the colors you care about, and copy out a JSON file. Anything you do not touch inherits from the base theme, so even a one-color change is a valid theme. Hand-authors who want more control can use the schema reference.

Identity

Display nameID (filename)Base theme

Appearance

Each theme file is one appearance. To ship a coordinated light and dark pair, build one of each and pair them in Mudlark under Follow System Appearance.

Accents

Six identity colors for the major item types.

Primary

Headings

Warm

Tasks

Cool

Code

Alt

Questions

Support

Media

Signal

Timers

Neutrals

Three tiers for markers, metadata, and comments.

Strong

List markers

Annotation

Metadata

Muted

Comments

Editor

The writing surface: background, body text, cursor, and the paper-pattern overlay.

Background

Editor paper color

Body text

Default text color

Cursor

Caret color

Paper pattern

Subtle texture overlay