Examine source code of Béchamp Vision

{
  "name": "Béchamp Vision",
  "version": "1.0",
  "description": "Helps you read the web through Antoine Béchamp eyes.",
  "icons": {
    "96": "icon.png"
  },
  "manifest_version": 2,
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "all_frames": true,
      "js": [
        "content_script.js"
      ],
      "run_at": "document_end"
    }
  ]
}