Examine source code of UI5 Inspector

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "UI5 Inspector",
  "version": "0.9.5resigned1",
  "background": {
    "persistence": false,
    "scripts": [
      "/scripts/background/main.js"
    ]
  },
  "content_scripts": [
    {
      "js": [
        "/scripts/content/detectUI5.js"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "content_security_policy": "default-src 'self'; style-src 'unsafe-inline';",
  "description": "With the UI5 Inspector, you can easily debug and support your OpenUI5 or SAPUI5-based apps.",
  "devtools_page": "/html/devtools/index.html",
  "icons": {
    "16": "/images/icon-16.png",
    "128": "/images/icon-128.png"
  },
  "page_action": {
    "default_icon": {
      "19": "/images/icon-19.png",
      "38": "/images/icon-38.png"
    },
    "default_popup": "/html/popup/index.html"
  },
  "permissions": [
    "tabs",
    "contextMenus",
    "<all_urls>"
  ],
  "web_accessible_resources": [
    "/scripts/injected/*.js",
    "/vendor/ToolsAPI.js"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{95bae703-9365-4ef0-8491-b3dfeed912fb}"
    }
  }
}