Examine source code of Auto Flashcard Generator

{
  "manifest_version": 2,
  "name": "Auto Flashcard Generator",
  "version": "1.0",
  "description": "Turn selected text into flashcards.",
  "permissions": [
    "storage",
    "contextMenus",
    "activeTab"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "browser_action": {
    "default_icon": "icons/icon.png",
    "default_title": "Flashcard Generator"
  },
  "icons": {
    "48": "icons/icon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{ea4c4c5f-63de-4d87-b907-f5536c1bebb0}"
    }
  }
}