Examine source code of Flow by Spooky Services

{
  "name": "Flow by Spooky Services",
  "short_name": "Flow",
  "description": "Flow allows you to send notes and links between your devices seamlessly.",
  "version": "0.1.0",
  "author": "Spooky Services",
  "homepage_url": "https://flow.spookysrv.com",
  "icons": {
    "16": "icons/16.png",
    "32": "icons/32.png",
    "48": "icons/48.png",
    "64": "icons/64.png",
    "128": "icons/128.png"
  },
  "content_scripts": [
    {
      "all_frames": true,
      "js": [
        "flowPageScript.js"
      ],
      "matches": [
        "https://app.flow.spookysrv.com/*"
      ]
    }
  ],
  "manifest_version": 2,
  "permissions": [
    "tabs",
    "storage",
    "https://app.flow.spookysrv.com/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "flow@spookysrv.com"
    }
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_title": "Flow by Spooky Services"
  },
  "sidebar_action": {
    "default_icon": {
      "16": "icons/16.png",
      "32": "icons/32.png",
      "48": "icons/48.png",
      "64": "icons/64.png",
      "128": "icons/128.png"
    },
    "default_title": "Flow by Spooky Services",
    "default_panel": "sidepanel.html",
    "open_at_install": false
  }
}