v2rayN/v2rayN/v2rayN.Desktop/Converters/DelayColorConverter.cs

using System.Globalization;
using Avalonia.Data.Converters;
using Avalonia.Media;

namespace v2rayN.Desktop.Converters
{
    public class DelayColorConverter : IValueConverter
    {
        public object? Convert(object? value, Type targetType, object? parameter, CultureInfo culture)
        {
            int.TryParse(value?.ToString(), out var delay);

            if (delay <= 0)
                return new SolidColorBrush(Colors.Red);
            if (delay <= 500)
                return new SolidColorBrush(Colors.Green);
            else
                return new SolidColorBrush(Colors.IndianRed);
        }

        public object? ConvertBack(object? value, Type targetType, object? parameter, CultureInfo culture)
        {
            return null;
        }
    }
}