Umbraco-CMS/src/Umbraco.Core/Logging/LogLevel.cs

namespace Umbraco.Core.Logging
{
    /// <summary>
    /// Specifies the level of a log event.
    /// </summary>
    public enum LogLevel
    {
        Verbose,
        Debug,
        Information,
        Warning,
        Error,
        Fatal
    }
}