Examine source code of Twitch Fixer

{
  "manifest_version": 2,
  "name": "Twitch Fixer",
  "version": "0.3",
  "description": "Remove sponsored/advertised channels that auto-play from the main page.",
  "content_scripts": [
    {
      "matches": [
        "*://www.twitch.tv/*"
      ],
      "css": [
        "styles.css"
      ],
      "js": [
        "script.js"
      ]
    }
  ],
  "icons": {
    "128": "icons/Twitch_Logo-128.png"
  },
  "options_ui": {
    "page": "options.html"
  },
  "permissions": [
    "storage"
  ],
  "browser_action": {
    "default_icon": {
      "128": "icons/Twitch_Logo-128.png"
    },
    "browser_style": true,
    "default_popup": "options.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{d4531b9b-39f9-47ab-8158-ba8eb17e0cc6}"
    }
  }
}