Examine source code of Vinyloscope pour Discogs

{
  "manifest_version": 2,
  "name": "Vinyloscope for Discogs",
  "description": "This extension allows you to integrate the result of a research of Vinyloscope directly in a release page of Discogs.",
  "icons": {
    "48": "icons/vinyloscope-icon-48.png",
    "96": "icons/vinyloscope-icon-96.png",
    "128": "icons/vinyloscope-icon-128.png"
  },
  "version": "0.1.13resigned1",
  "permissions": [
    "*://www.vinyloscope.com/*"
  ],
  "content_scripts": [
    {
      "js": [
        "vinyloscope-plugin.js"
      ],
      "matches": [
        "https://www.discogs.com/*/release/*"
      ]
    }
  ],
  "web_accessible_resources": [
    "img/logos/*.png",
    "img/flags/*.png",
    "icons/*.png",
    "icons/*.gif"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{49676342-bd89-48b9-a799-499a5640bb6d}"
    }
  }
}