Examine source code of Hirescope AutoFill

{
  "name": "Hirescope",
  "description": "",
  "version": "0.0.4",
  "manifest_version": 2,
  "icons": {
    "32": "assets/icons/icon_32.png",
    "64": "assets/icons/icon_64.png"
  },
  "action": {
    "default_icon": {
      "16": "assets/icons/icon_16.png",
      "24": "assets/icons/icon_24.png",
      "32": "assets/icons/icon_32.png",
      "64": "assets/icons/icon_64.png",
      "128": "assets/icons/icon_128.png",
      "256": "assets/icons/icon_256.png",
      "512": "assets/icons/icon_512.png"
    }
  },
  "permissions": [
    "tabs",
    "storage"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "run_at": "document_idle",
      "all_frames": false,
      "js": [
        "lib/jquery_3.5.1/jquery_3_5_1.js",
        "scripts/customLib/draggableDiv.js",
        "data/static-data.js",
        "data/fieldMappings.js",
        "scripts/content/helper.js",
        "scripts/content/customPopup.js",
        "scripts/content/custom_methods.js",
        "scripts/content/content_script.js"
      ],
      "css": [
        "styles/content_style.css"
      ]
    }
  ],
  "background": {
    "scripts": [
      "config.js",
      "scripts/bg/autoReload.js",
      "scripts/backend/auth.js",
      "scripts/backend/user.js",
      "scripts/bg/mainBg.js"
    ]
  },
  "web_accessible_resources": [
    "assets/*",
    "styles/*",
    "lib/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{e0da79fe-a579-46be-b9a8-0f3b1c791516}"
    }
  }
}