ThemeSong for YouTube Music™ (Dynamic Themes)

manifest.json

{
  "manifest_version": 2,
  "version": "1.2.0",
  "name": "__MSG_appName__",
  "description": "__MSG_appDescription__",
  "default_locale": "en",
  "background": {
    "scripts": [
      "themesong-background.js"
    ]
  },
  "permissions": [
    "https://music.youtube.com/*",
    "https://*.googleusercontent.com/*",
    "https://*.ytimg.com/*",
    "storage",
    "notifications",
    "scripting",
    "search"
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": "assets/icon-34.png"
  },
  "icons": {
    "34": "assets/icon-34.png",
    "128": "assets/icon-128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://music.youtube.com/*"
      ],
      "run_at": "document_end",
      "js": [
        "themesong-content.js"
      ]
    }
  ],
  "web_accessible_resources": [
    "/assets/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{6458ac08-a9d7-4e42-a1b0-f0c43bf90f7d}"
    }
  }
}