Examine source code of Liner (Music Lyrics)

{
  "manifest_version": 3,
  "name": "Liner",
  "version": "1.0.9",
  "description": "Lyrics & meaning, in time with the music.",
  "permissions": [
    "storage",
    "activeTab",
    "scripting",
    "tabs"
  ],
  "host_permissions": [
    "https://genius.com/*",
    "https://lrclib.net/*",
    "https://translate.googleapis.com/*",
    "https://api.mymemory.translated.net/*",
    "https://music.163.com/*"
  ],
  "optional_host_permissions": [
    "https://www.youtube.com/*",
    "https://youtube.com/*",
    "https://music.youtube.com/*",
    "https://open.spotify.com/*",
    "https://music.apple.com/*",
    "https://soundcloud.com/*",
    "https://listen.tidal.com/*",
    "https://tidal.com/*"
  ],
  "content_scripts": [
    {
      "js": [
        "assets/media-session.ts-TJ8L43Vc.js"
      ],
      "matches": [
        "https://www.youtube.com/*",
        "https://youtube.com/*",
        "https://music.youtube.com/*",
        "https://open.spotify.com/*",
        "https://music.apple.com/*",
        "https://soundcloud.com/*",
        "https://listen.tidal.com/*",
        "https://tidal.com/*"
      ],
      "run_at": "document_idle"
    }
  ],
  "background": {
    "scripts": [
      "service-worker-loader.js"
    ],
    "type": "module"
  },
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "web_accessible_resources": [
    {
      "matches": [
        "https://listen.tidal.com/*",
        "https://music.apple.com/*",
        "https://music.youtube.com/*",
        "https://open.spotify.com/*",
        "https://soundcloud.com/*",
        "https://tidal.com/*",
        "https://www.youtube.com/*",
        "https://youtube.com/*"
      ],
      "resources": [
        "assets/media-session.ts-TJ8L43Vc.js"
      ]
    }
  ],
  "sidebar_action": {
    "default_panel": "src/panel/index.html",
    "default_title": "Liner",
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "liner@maxgyamfi.app",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}