> ## Documentation Index
> Fetch the complete documentation index at: https://docs.unbound.rip/llms.txt
> Use this file to discover all available pages before exploring further.

# Introduction

> Recolor Discord's interface with a theme.

A theme changes how Discord looks. Where a [plugin](/plugins/introduction) is code that runs, a theme is **data**: a JSON definition of colors (and an optional background) that Unbound applies to Discord's interface.

### How themes work

Discord styles its UI from a palette of named colors. A theme overrides that palette: you provide values for the color names you want to change, Unbound parses your definition, and the theme store pushes it into the app. Because a theme is just parsed JSON with no `start`/`stop` to run, applying or removing one is instant.

Themes are governed by the same [manager](/modules/managers) as plugins. They are loaded, enabled, disabled, and persisted through the same lifecycle. The one difference is that enabling a theme *applies* it: only one theme is active at a time, so enabling a new one replaces the previous.

### What a theme defines

<CardGroup cols={2}>
  <Card title="Manifest" icon="circle-info" href="/addons/manifest">
    Metadata (name, authors, version) identifying your theme.
  </Card>

  <Card title="Theme Types" icon="palette" href="/themes/types">
    The semantic and raw colors that make up the palette, and the base type they extend.
  </Card>

  <Card title="Backgrounds" icon="image" href="/themes/backgrounds">
    An optional image behind the interface, with blur and opacity.
  </Card>
</CardGroup>

<Note>
  A theme can't run logic or patch components; it only restyles. If you need behavior, that's a [plugin](/plugins/introduction).
</Note>