Examine source code of Idleon Wisdom Helper

{
  "name": "Idleon Wisdom Helper",
  "description": "A browser extension to help you win *that* memory card game in Idleon",
  "version": "1.0.0",
  "manifest_version": 2,
  "icons": {
    "16": "icon/16.png",
    "32": "icon/32.png",
    "48": "icon/48.png",
    "128": "icon/128.png"
  },
  "background": {
    "scripts": [
      "src/background.js"
    ],
    "persistent": false
  },
  "commands": {
    "Initial capture": {
      "suggested_key": {
        "default": "Alt+Q"
      },
      "description": "Initial screenshot"
    },
    "Capture changes": {
      "suggested_key": {
        "default": "Alt+W"
      },
      "description": "Capture flipped cards"
    }
  },
  "permissions": [
    "activeTab"
  ],
  "browser_action": {
    "default_title": "Idleon Wisdom Helper"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{b78761d6-5eae-4d32-8a9f-71f7225077c0}"
    }
  }
}