Examine source code of CloudKeeper Tuner

{
  "manifest_version": 2,
  "version": "2.7.28",
  "name": "CloudKeeper Tuner",
  "description": "Engineering Productivity",
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_icon": "assets/icon32.png"
  },
  "permissions": [
    "tabs",
    "storage",
    "activeTab",
    "scripting",
    "https://tuner.cloudkeeper.com/*",
    "https://be.cloudonomic.com/*",
    "https://app.cloudkeeper.com/*"
  ],
  "icons": {
    "16": "assets/icon16.png",
    "32": "assets/icon32.png",
    "48": "assets/icon48.png",
    "128": "assets/icon128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://tuner.cloudkeeper.com/*",
        "https://be.cloudonomic.com/*",
        "https://app.cloudkeeper.com/*"
      ],
      "js": [
        "costwiseHook.js"
      ]
    },
    {
      "matches": [
        "https://*.aws.amazon.com/*"
      ],
      "js": [
        "aws.js",
        "costwiseHook.js"
      ],
      "run_at": "document_end",
      "permissions": [
        "https://tuner.cloudkeeper.com/*",
        "https://be.cloudonomic.com/*",
        "https://app.cloudkeeper.com/*"
      ],
      "match_about_blank": true,
      "all_frames": true
    }
  ],
  "web_accessible_resources": [
    "assets/*.*",
    "costwiseHook.js"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{56ca6a2f-8597-4054-a69f-b68ccfadea1c}"
    }
  }
}