Examine source code of StackOverflow Detoxifier

{
  "manifest_version": 2,
  "name": "StackOverflow Detoxifier",
  "version": "1.1",
  "description": "Removes some of the most toxic parts of Stack-Overflow, such as the downvote and close buttons",
  "content_scripts": [
    {
      "matches": [
        "*://*.stackoverflow.com/*",
        "*://stackoverflow.com/*"
      ],
      "js": [
        "better-so.js"
      ]
    }
  ]
}