Examine source code of Datasprout

{
  "name": "Datasprout",
  "short_name": "Datasprout",
  "version": "1.2.23",
  "description": "Transform your Amazon KDP sales reports.",
  "content_security_policy": "script-src 'self'; object-src 'self' https://kdp.amazon.com https://datasprout.co https://api.datasprout.co https://www.w3.org https://kdp-monthly-reports.s3.us-west-2.amazonaws.com/ https://kdp-export-pmr.s3.amazonaws.com/",
  "browser_action": {
    "default_icon": "src/images/logo512.png"
  },
  "icons": {
    "16": "src/images/logo16.png",
    "32": "src/images/logo32.png",
    "48": "src/images/logo48.png",
    "128": "src/images/logo128.png",
    "192": "src/images/logo192.png",
    "512": "src/images/logo512.png"
  },
  "permissions": [
    "activeTab",
    "https://kdp.amazon.com/*",
    "https://kdp-export-pmr.s3.amazonaws.com/*",
    "https://kdp-monthly-reports.s3.us-west-2.amazonaws.com/*",
    "https://datasprout.co/*",
    "https://*.datasprout.co/*",
    "storage"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://kdp.amazon.com/*/bookshelf*",
        "https://kdp.amazon.com/bookshelf*",
        "https://kdp.amazon.com/*/reports-old*",
        "https://kdp.amazon.com/reports-old*",
        "https://kdp.amazon.com/*/select*",
        "https://kdp.amazon.com/select*"
      ],
      "js": [
        "libs.js",
        "datasprout.min.js"
      ]
    }
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": true
  },
  "web_accessible_resources": [
    "src/images/logo16.png",
    "src/images/logo32.png",
    "src/images/logo48.png",
    "src/images/logo128.png",
    "src/images/logo192.png",
    "src/images/logo512.png",
    "src/layout/accountError.html",
    "src/layout/main.html",
    "src/fonts/Overpass-Light.ttf",
    "src/fonts/Overpass-LightItalic.ttf",
    "src/fonts/Overpass-SemiBold.ttf",
    "src/fonts/fa-light-300.ttf",
    "src/fonts/fa-regular-400.ttf",
    "src/fonts/fa-solid-900.ttf"
  ],
  "manifest_version": 2,
  "browser_specific_settings": {
    "gecko": {
      "id": "{03cede56-35d5-4e35-ab33-9112ede5e2dd}"
    }
  }
}