windowedMyApp/WindowedMyApp/Category.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Media;

namespace WindowedMyApp
{
    public class Category
    {
        public float Percentage { get; set; }
        public string Title { get; set; }
        public Brush ColorBrush { get; set; }
    }
}