Examine source code of SalesForce Data Extractor

{
  "manifest_version": 2,
  "name": "Sales Force Data Extractor",
  "short_name": "SF Data Extr",
  "description": "Script helper for Cut-Sheet builder: extracts most essential data from a Salesforce ENG# page and present it into a popup window as a temporary webpage.",
  "version": "1.12.0.0",
  "homepage_url": "https://github.com/",
  "author": "Stefano Fiori",
  "icons": {
    "32": "icons/icon_multi-pickup-colors-32.png",
    "48": "icons/icon_multi-pickup-colors-48.png",
    "64": "icons/icon_multi-pickup-colors-64.png",
    "96": "icons/icon_multi-pickup-colors-96.png",
    "128": "icons/icon_multi-pickup-colors-128.png"
  },
  "optional_permissions": [
    "activeTab",
    "clipboardWrite"
  ],
  "permissions": [
    "activeTab",
    "clipboardWrite"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://spectrum-enterprise.my.salesforce.com/*"
      ],
      "js": [
        "/app.js"
      ]
    }
  ],
  "background": {
    "scripts": [
      "/app.js"
    ]
  },
  "commands": {
    "run-data-extractor-script": {
      "suggested_key": {
        "default": "Ctrl+Alt+X",
        "linux": "Ctrl+Alt+X",
        "windows": "Ctrl+Alt+X"
      },
      "description": "Send a 'run-data-extractor-script' event to the 'commands' listener object."
    }
  },
  "browser_action": {
    "default_icon": {
      "32": "icons/icon_multi-pickup-colors-32.png",
      "48": "icons/icon_multi-pickup-colors-48.png",
      "64": "icons/icon_multi-pickup-colors-64.png",
      "96": "icons/icon_multi-pickup-colors-96.png",
      "128": "icons/icon_multi-pickup-colors-128.png"
    },
    "default_title": "Execute SalesForce Data Extractor!"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{5f626c9d-2bf0-4b22-bc2d-c137a24beeca}"
    }
  }
}