Examine source code of MaterialCraftExplorer

{
  "manifest_version": 2,
  "name": "MaterialCraftExplorer",
  "version": "1.0",
  "description": "Master essential materials science and surface engineering terminology through interactive multiple-choice practice modules.",
  "icons": {
    "48": "material_craft_icon.png"
  },
  "browser_action": {
    "default_popup": "index.html",
    "default_title": "MaterialCraftExplorer"
  },
  "permissions": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "{6d20540f-8609-4295-ae25-3ee87ea065ed}",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}