Examine source code of SplitTill

{
  "manifest_version": 3,
  "name": "SplitTill",
  "version": "1.0.0",
  "description": "Split manually entered group bills with tax, tip, discounts, payer balances, and settlement suggestions.",
  "icons": {
    "64": "assets/icon.svg"
  },
  "action": {
    "default_title": "SplitTill",
    "default_popup": "popup/popup.html",
    "default_icon": "assets/icon.svg"
  },
  "permissions": [
    "clipboardWrite"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "splittill@example.com",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}