Examine source code of Minimalist pass generator

{
  "manifest_version": 2,
  "name": "Security",
  "version": "1.2resigned1",
  "description": "Generate password for websites",
  "icons": {
    "48": "icons/48.png"
  },
  "permissions": [
    "tabs",
    "storage"
  ],
  "commands": {
    "generate-password": {
      "suggested_key": {
        "default": "Ctrl+Shift+L"
      },
      "description": "Generate the password if the secret password is setup"
    }
  },
  "browser_action": {
    "default_icon": "icons/32.png",
    "default_title": "Security",
    "default_popup": "popup/index.html",
    "browser_style": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{3308a041-d9eb-4c32-9a38-dc1f6842d863}"
    }
  }
}