Examine source code of Esportal Browser Boost

{
  "name": "Esportal Browser Boost",
  "version": "0.0.0.14",
  "manifest_version": 2,
  "description": "Remove the twitch section from esportal.com",
  "icons": {
    "16": "icons/16.png",
    "32": "icons/32.png",
    "48": "icons/48.png",
    "128": "icons/128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://esportal.com/*"
      ],
      "js": [
        "src/content-script.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{a06d6148-ba52-4eed-bdf1-340ca83d7bb7}"
    }
  }
}