Examine source code of Ebay safe products

{
  "name": "Ebay safe products (not affiliated with ebay)",
  "version": "0.2",
  "description": "Only shows Ebay Products with sellers that are top rated and products with the 'ebay refurbished' indicator",
  "manifest_version": 2,
  "permissions": [
    "activeTab"
  ],
  "icons": {
    "48": "./icons/ebay48.png",
    "64": "./icons/ebay64.png",
    "96": "./icons/ebay96.png",
    "128": "./icons/ebay128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.ebay.com/*"
      ],
      "css": [
        "./styles.css"
      ],
      "js": [
        "./app.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{4956c8dc-a9ed-403f-afe6-16c6b84b619e}"
    }
  }
}