# JSON Content Formatter

A Chrome extension that formats JSON in the current tab, highlights with
highlight.js, linkifies URLs, and offers collapsible views and line numbers.

## Features
- Auto format (optional) for supported content types.
- Manual format via toolbar icon or context menu.
- Theme selection (light/dark + highlight.js theme).
- Line numbers toggle.
- Collapsible blocks for JSON, YAML, XML, and Markdown.

## Supported Languages
Defaults to JSON only. Enable additional languages in options:
- JSON
- Markdown
- Plaintext
- XML
- YAML

## Usage
1. Load the extension via `chrome://extensions` (Developer mode > Load unpacked).
2. Open the extension options to configure:
   - Auto format
   - Theme mode and highlight theme
   - Line numbers
   - Enabled languages
3. Use:
   - Toolbar icon click to format the current tab
   - Right-click the icon > "Einstellungen" to open options
   - Right-click the page > "JSON jetzt formatieren"

## Notes
- Auto format requires host permissions to read page content.
- Manual formatting uses language auto-detection only for enabled languages.