Examine source code of CSV beautifier

{
  "description": "Extension to decorate plain CSV data to table",
  "manifest_version": 2,
  "name": "CSV beautifier",
  "version": "1.3",
  "homepage_url": "https://github.com/sartor/csv-beautifier",
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "background": {
    "scripts": [
      "main.js"
    ]
  },
  "browser_action": {
    "default_icon": {
      "16": "icons/icon-16.png",
      "32": "icons/icon-32.png",
      "48": "icons/icon-48.png",
      "128": "icons/icon-128.png"
    }
  },
  "permissions": [
    "activeTab",
    "storage"
  ],
  "options_ui": {
    "page": "options.html",
    "browser_style": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{e497607a-82e7-4e50-a52b-ee87c89c91c8}"
    }
  }
}