Examine source code of Reaser

{
  "manifest_version": 2,
  "name": "Reaser",
  "author": "Fabio Forni",
  "version": "1.0.0",
  "permissions": [
    "history",
    "tabs",
    "webNavigation"
  ],
  "icons": {
    "48": "icon/reaser.svg",
    "96": "icon/reaser.svg"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "js": [
        "content.js"
      ],
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "run_at": "document_end"
    }
  ]
}