DanMage: Flow chat on YouTube & Twitch & more

A.k.a. NicoNico-style chat, danmaku, danmu, bullet comments, barrage comments, and chat overlay. Chats will be scrolled from right to left, on top of the video being played. Customization settings include opacity, font size, and distribution method.

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manifest.json

{
  "manifest_version": 2,
  "name": "__MSG_extName__",
  "description": "__MSG_extDescription__",
  "version": "4.2.6",
  "icons": {
    "128": "image/app_icon.png"
  },
  "default_locale": "en",
  "background": {
    "scripts": [
      "background/index.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.youtube.com/*",
        "https://www.twitch.tv/*"
      ],
      "js": [
        "content_script/index.js"
      ],
      "run_at": "document_end"
    },
    {
      "matches": [
        "https://static.crunchyroll.com/*"
      ],
      "all_frames": true,
      "js": [
        "content_script/index.js"
      ],
      "run_at": "document_end"
    }
  ],
  "permissions": [
    "identity",
    "https://www.danmage.com/"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "[email protected]"
    }
  }
}