Examine source code of DPlay Inventory

{
  "manifest_version": 2,
  "name": "DPlay Inventory",
  "version": "1.3",
  "description": "DPlay Inventory",
  "browser_action": {
    "default_popup": "index.html"
  },
  "icons": {
    "16": "icon16.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "permissions": [
    "storage",
    "tabs"
  ],
  "background": {
    "scripts": [
      "BACKGROUND.js"
    ]
  },
  "content_scripts": [
    {
      "js": [
        "CONTENT.js"
      ],
      "matches": [
        "file://*/*",
        "http://*/*",
        "https://*/*"
      ],
      "run_at": "document_start",
      "all_frames": true
    }
  ]
}