Boilerplate Console Application Logging with log4net

Logging.cs

using log4net;
using log4net.Appender;
using log4net.Core;
using log4net.Layout;
using log4net.Repository.Hierarchy;

public static class Logging
{
    private const string ConversionPattern = "%date{HH:mm:ss,fff} %-5level %-15logger{1} %message%newline";
    private static readonly PatternLayout PatternLayout;

    static Logging()
    {
        PatternLayout = new PatternLayout {ConversionPattern = ConversionPattern};
        PatternLayout.ActivateOptions();
    }
        
    /// <param name="logPath">Path to the log file to use in order to log to a file; Otherwise, null.</param>
    public static void Setup(string logPath)
    {
        var hierarchy = (Hierarchy)LogManager.GetRepository();
        hierarchy.Root.AddAppender(CreateConsoleAppender());
        if (!string.IsNullOrWhiteSpace(logPath))
        {
            hierarchy.Root.AddAppender(CreateLogFileAppender(logPath));
        }
        hierarchy.Root.Level = Level.Debug;
        hierarchy.Configured = true;
    }

    private static ColoredConsoleAppender CreateConsoleAppender()
    {
        var appender = new ColoredConsoleAppender {Layout = PatternLayout};
        appender.AddMapping(new ColoredConsoleAppender.LevelColors
        {
            Level = Level.Debug,
            ForeColor = ColoredConsoleAppender.Colors.Green
        });
        appender.AddMapping(new ColoredConsoleAppender.LevelColors
        {
            Level = Level.Info,
            ForeColor = ColoredConsoleAppender.Colors.White
        });
        appender.AddMapping(new ColoredConsoleAppender.LevelColors
        {
            Level = Level.Warn,
            ForeColor = ColoredConsoleAppender.Colors.Yellow
        });
        appender.AddMapping(new ColoredConsoleAppender.LevelColors
        {
            Level = Level.Error,
            ForeColor = ColoredConsoleAppender.Colors.Red
        });
        appender.AddMapping(new ColoredConsoleAppender.LevelColors
        {
            Level = Level.Fatal,
            ForeColor = ColoredConsoleAppender.Colors.HighIntensity | ColoredConsoleAppender.Colors.Red
        });
        appender.ActivateOptions();
        return appender;
    }

    private static IAppender CreateLogFileAppender(string logPath)
    {
        var appender = new FileAppender {Layout = PatternLayout, File = logPath};
        appender.ActivateOptions();
        return appender;
    }
}