Examine source code of Hestia Campfire Plugin

{
  "manifest_version": 2,
  "name": "Hestia Campfire Plugin",
  "version": "1.7",
  "description": "Plugin for watching videos on website with your family or/and friends in this same time, on different devices.",
  "author": "Marcin Kalinowski",
  "developer": {
    "name": "Marcin Kalinowski",
    "url": "https://github.com/MarcinK-ski"
  },
  "icons": {
    "128": "icons/hcp-128.png"
  },
  "permissions": [
    "storage"
  ],
  "browser_action": {
    "default_icon": "icons/hcp-128.png",
    "default_title": "HestiaCampfire",
    "default_popup": "options/options.html"
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "user-types.js",
        "ctl-init.js",
        "ctl-init-events.js",
        "ctrl-panel-builder.js",
        "video-ctl.js",
        "ws-connection.js"
      ],
      "css": [
        "css/hestiacampfire.css"
      ],
      "run_at": "document_end"
    }
  ]
}