Examine source code of Twitch Points Clicker

{
  "author": "igorlogius",
  "content_scripts": [
    {
      "matches": [
        "*://*.twitch.tv/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "description": "Auto clicks the Claim Channel Points Button when it appears",
  "icons": {
    "128": "icon.png"
  },
  "manifest_version": 2,
  "name": "Twitch Points Clicker",
  "version": "1.0.2",
  "browser_specific_settings": {
    "gecko": {
      "id": "{b8af0c32-a468-451c-9dae-1ec3bb18b9f5}"
    }
  }
}