Examine source code of hacK4uALL

{
  "manifest_version": 2,
  "name": "hacK4uALL",
  "version": "0.0.1",
  "description": "All in one Indian Team Developer Tool Kit",
  "browser_action": {
    "default_title": "hack4uALL",
    "default_popup": "index.html",
    "default_icon": {
      "16": "./assets/icons/icon-16.png",
      "32": "./assets/icons/icon-32.png",
      "48": "./assets/icons/icon-48.png",
      "128": "./assets/icons/icon-128.png"
    }
  },
  "options_ui": {
    "page": "options/options.html",
    "open_in_tab": true
  },
  "icons": {
    "16": "./assets/icons/icon-16.png",
    "32": "./assets/icons/icon-32.png",
    "48": "./assets/icons/icon-48.png",
    "128": "./assets/icons/icon-128.png"
  },
  "devtools_page": "devtools/devtools.html",
  "content_scripts": [
    {
      "css": [
        "injection/injection.css"
      ],
      "js": [
        "assets/js/jquery.js",
        "injection/injection.js",
        "injection/dragable.js"
      ],
      "matches": [
        "*://*/*"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{52371e6a-11cb-4dd7-b440-6244643b0378}"
    }
  }
}