Examine source code of Aura MP3 Player

{
  "manifest_version" : 2 ,
  "name" : "Aura Player",
  "version" : "1.0.0",
  "description" : "A gorgeous music player for your sidebar: playlists, equalizer, speed control and a stunning fullscreen visualizer.",
  "author": "Developed by Mo",
  "homepage_url" : "https://developed-by-mo.web.app",
  "icons" : {
    "16" : "icons/icon.svg",
    "32" : "icons/icon.svg",
    "48" : "icons/icon.svg",
    "96" : "icons/icon.svg",
    "128" : "icons/icon.svg"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "aura-player@developed-by-mo",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "permissions" : [
    "storage" ,
    "unlimitedStorage" 
  ],
  "background" : {
    "scripts" : [
      "lib.js" ,
      "background.js" 
    ],
    "persistent" : true 
  },
  "browser_action" : {
    "default_title" : "Aura Player",
    "default_icon" : "icons/icon.svg"
  },
  "sidebar_action": {
    "default_title" : "Aura Player",
    "default_panel": "player.html?mode=sidebar",
    "default_icon" : "icons/icon.svg",
    "open_at_install": false
  },
  "commands" : {
    "_execute_sidebar_action": {
      "suggested_key": {
        "default": "Alt+Shift+M"
      },
      "description" : "Toggle Aura Player sidebar"
    }
  }
}