Chat Notification Sound

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Chat Notification Sound",
  "description": "Change the sound used for Google Chat notifications",
  "version": "0.2",
  "icons": {
    "128": "icon.png"
  },
  "manifest_version": 3,
  "action": {
    "default_popup": "settings.html"
  },
  "declarative_net_request": {
    "rule_resources": [
      {
        "id": "droplet",
        "enabled": true,
        "path": "rules/droplet.json"
      },
      {
        "id": "just-maybe",
        "enabled": false,
        "path": "rules/just-maybe.json"
      },
      {
        "id": "micro",
        "enabled": false,
        "path": "rules/micro.json"
      },
      {
        "id": "small-tip",
        "enabled": false,
        "path": "rules/small-tip.json"
      },
      {
        "id": "take-this",
        "enabled": false,
        "path": "rules/take-this.json"
      },
      {
        "id": "disable",
        "enabled": false,
        "path": "rules/disable.json"
      }
    ]
  },
  "permissions": [
    "declarativeNetRequest"
  ],
  "host_permissions": [
    "*://chat.google.com/*",
    "*://ssl.gstatic.com/*"
  ]
}