/// <summary>
/// Get a value from user settings or, as fallback, from default settings.
/// </summary>
/// <typeparam name="T">Type of value.</typeparam>
/// <param name="sectionName">Name of section.</param>
/// <param name="keyName">Name of key.</param>
public T GetValue <T>(string sectionName, string keyName)
{
return(data.GetValue <T>(sectionName, keyName));
}