Examine source code of SCP Tracker

{
  "manifest_version": 2,
  "name": "SCP Tracker",
  "version": "1.1.0",
  "description": "Tracks which SCPs and tales you've read on the SCP Foundation wiki with enhanced features",
  "permissions": [
    "storage",
    "tabs",
    "alarms",
    "*://scp-wiki.wikidot.com/*",
    "*://wanderers-library.wikidot.com/*",
    "*://scp-ru.wikidot.com/*",
    "*://scp-jp.wikidot.com/*",
    "*://scp-es.wikidot.com/*",
    "*://scp-pl.wikidot.com/*",
    "*://scp-fr.wikidot.com/*",
    "*://scp-de.wikidot.com/*",
    "*://scp-it.wikidot.com/*",
    "*://scp-ko.wikidot.com/*",
    "*://scp-zh.wikidot.com/*",
    "*://scp-zh-tr.wikidot.com/*",
    "*://scp-th.wikidot.com/*",
    "*://scp-vn.wikidot.com/*",
    "*://scp-cs.wikidot.com/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_title": "SCP Tracker",
    "default_popup": "popup/popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png",
      "96": "icons/icon96.png",
      "128": "icons/icon128.png"
    }
  },
  "options_ui": {
    "page": "pages/settings/settings.html",
    "open_in_tab": true
  },
  "content_scripts": [
    {
      "matches": [
        "*://scp-wiki.wikidot.com/*",
        "*://wanderers-library.wikidot.com/*",
        "*://scp-ru.wikidot.com/*",
        "*://scp-jp.wikidot.com/*",
        "*://scp-es.wikidot.com/*",
        "*://scp-pl.wikidot.com/*",
        "*://scp-fr.wikidot.com/*",
        "*://scp-de.wikidot.com/*",
        "*://scp-it.wikidot.com/*",
        "*://scp-ko.wikidot.com/*",
        "*://scp-zh.wikidot.com/*",
        "*://scp-zh-tr.wikidot.com/*",
        "*://scp-th.wikidot.com/*",
        "*://scp-vn.wikidot.com/*",
        "*://scp-cs.wikidot.com/*"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "content.css"
      ],
      "run_at": "document_idle",
      "all_frames": false
    }
  ],
  "commands": {
    "toggle-reader": {
      "description": "Toggle Immersive Reader",
      "suggested_key": {
        "default": "Alt+R",
        "mac": "Alt+R",
        "windows": "Alt+R",
        "linux": "Alt+R"
      }
    }
  },
  "web_accessible_resources": [
    "dictionary.json",
    "accessibility.css",
    "styles/*.css",
    "styles/themes/*.css",
    "icons/*.png"
  ],
  "applications": {
    "gecko": {
      "id": "scp-tracker@masterlincs.dev",
      "strict_min_version": "115.0"
    }
  },
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "96": "icons/icon96.png",
    "128": "icons/icon128.png",
    "256": "icons/icon256.png"
  },
  "content_security_policy": "script-src 'self'; object-src 'self'; img-src 'self' data: https:; style-src 'self' 'unsafe-inline'; connect-src https://scp-wiki.wikidot.com https://wanderers-library.wikidot.com https://scp-ru.wikidot.com https://scp-jp.wikidot.com https://scp-es.wikidot.com https://scp-pl.wikidot.com https://scp-fr.wikidot.com https://scp-de.wikidot.com https://scp-it.wikidot.com https://scp-ko.wikidot.com https://scp-zh.wikidot.com https://scp-zh-tr.wikidot.com https://scp-th.wikidot.com https://scp-vn.wikidot.com https://scp-cs.wikidot.com"
}