Examine source code of StreamTitle Filter

{
  "manifest_version": 2,
  "name": "StreamTitle Filter",
  "version": "1.0.1",
  "description": "Filter streams by keywords in titles",
  "browser_specific_settings": {
    "gecko": {
      "id": "{0c001f35-318c-4e64-b537-98a9c2441f98}",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "permissions": [
    "storage",
    "*://*.twitch.tv/*",
    "*://*.kick.com/*"
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.twitch.tv/*"
      ],
      "js": [
        "twitch_content.js"
      ],
      "css": [
        "twitch_styles.css"
      ]
    },
    {
      "matches": [
        "*://*.kick.com/*"
      ],
      "js": [
        "kick_content.js"
      ],
      "css": [
        "kick_styles.css"
      ]
    }
  ],
  "icons": {
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  }
}