Examine source code of KiwiFarms Math Renderer

{
  "manifest_version": 2,
  "name": "KiwiFarms Math Renderer",
  "version": "1.0",
  "description": "Renders $...$ and $$...$$ math expressions using KaTeX on KiwiFarms posts.",
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "browser_action": {
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    },
    "default_title": "Rerender the current page"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "permissions": [
    "tabs"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://kiwifarms.st/*",
        "*://kiwifarms.net/*"
      ],
      "js": [
        "content.js",
        "katex.min.js"
      ]
    }
  ],
  "web_accessible_resources": [
    "katex.min.css",
    "fonts/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{7d91429f-affa-4100-ad1d-d9f64e5ee548}"
    }
  }
}