YouTube LiveChat Flusher (Danmaku Chat)

Provides bullet chatting (danmaku) on YouTube Live, like niconico or bilibili.
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manifest.json
{
  "manifest_version": 3,
  "name": "__MSG_manifestName__",
  "version": "0.7.6",
  "browser_specific_settings": {
    "gecko": {
      "id": "{5a898e4e-6b5c-4acf-9e29-4c791d3b5f2e}",
      "strict_min_version": "109.0"
    },
    "gecko_android": {
      "strict_min_version": "128.0"
    }
  },
  "content_scripts": [
    {
      "all_frames": true,
      "css": [
        "content.css"
      ],
      "js": [
        "content.js"
      ],
      "matches": [
        "*://www.youtube.com/*"
      ],
      "run_at": "document_end"
    }
  ],
  "default_locale": "en",
  "description": "__MSG_manifestDescription__",
  "developer": {
    "name": "_y_s",
    "url": "https://github.com/ys-j/YoutubeLiveChatFlusher"
  },
  "icons": {
    "48": "icon.svg",
    "96": "icon.svg"
  },
  "permissions": [
    "storage"
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "livechat.js",
        "watch.js",
        "layer.css",
        "content.css"
      ],
      "matches": [
        "*://www.youtube.com/*"
      ]
    }
  ]
}