C# - Labels als Buttons verwenden

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Drawing;
using System.Windows.Forms;

namespace MathematicsDELUXE
{
    public static class LabelToButton
    {
        public static Dictionary<Label, Color[]> LbColors = new Dictionary<Label, Color[]>();
        public static void ToButton(this Label l, Color BGTop, Color BGBottom, Color BGTopHover, Color BGBottomHover)
        {
            l.GradientBackground(BGTop, BGBottom, true);
            l.MouseMove += new MouseEventHandler(Move);
            l.MouseLeave += new EventHandler(Leave);
            Color[] cols = {BGTop, BGBottom, BGTopHover, BGBottomHover};
            LbColors.Add(l, cols);
        }

        private static void Move(object sender, MouseEventArgs e)
        {
            try
            {
                Label l = (Label)sender;
                l.GradientBackground(LbColors[l][2], LbColors[l][3], true);
            }
            catch
            {
            }
        }

        private static void Leave(object sender, EventArgs e)
        {
            try
            {
                Label l = (Label)sender;
                l.GradientBackground(LbColors[l][0], LbColors[l][1], true);
            }
            catch
            {
            }
        }

        public static void GradientBackground(this Control c, Color col1, Color col2, bool vertical)
        {
            Bitmap b;
            if (vertical)
            {
                b = new Bitmap(1, 2);
                b.SetPixel(0, 0, col1);
                b.SetPixel(0, 1, col2);
            }
            else
            {
                b = new Bitmap(2, 1);
                b.SetPixel(0, 0, col1);
                b.SetPixel(1, 0, col2);
            }
            c.BackgroundImageLayout = ImageLayout.Stretch;
            c.BackgroundImage = b;
        }
    }
}