Examine source code of Image prompt helper

{
  "manifest_version": 2,
  "name": "Image prompt helper",
  "description": "A curated library of prompt keyword ideas to help you become AI Art pros!",
  "version": "1.1.1",
  "icons": {
    "48": "icon48.png",
    "64": "icon64.png",
    "128": "icon128.png"
  },
  "browser_action": {
    "default_popup": "src/popup/popup.html"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "content_scripts": [
    {
      "js": [
        "assets/browser-polyfill.min.js",
        "assets/content-script-loader.index.jsx.07c26ee2.33581a38.js"
      ],
      "matches": [
        "https://getimg.ai/*",
        "https://www.bing.com/*",
        "https://*.tengr.ai/*",
        "https://app.leonardo.ai/*",
        "https://creator.nightcafe.studio/*",
        "https://www.canva.com/*",
        "https://ideogram.ai/*",
        "http://127.0.0.1/*"
      ],
      "css": [
        "assets/index.3aea3749.css"
      ]
    }
  ],
  "permissions": [
    "contextMenus",
    "activeTab"
  ],
  "web_accessible_resources": [
    "assets/*",
    "assets/browser-polyfill.min.js",
    "assets/index.jsx.07c26ee2.js"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{ab3ea810-680b-4bcb-b4ba-198cfc9cb640}"
    }
  }
}