Examine source code of LexiCraft Explorer Engine

{
  "manifest_version": 2,
  "name": "LexiCraft Explorer Engine",
  "version": "1.0",
  "description": "Expand your English idiom proficiency through interactive contextual challenge modules designed for fast daily practice.",
  "icons": {
    "48": "lexicraft_explorer_icon.png"
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_title": "LexiCraft Explorer Engine"
  },
  "permissions": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "{0b22b3c4-cc72-43f3-95ce-c4fc2eabfb47}",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}