Switch-Toolbox/Switch_Toolbox_Library/Forms/Custom/STButton.cs

using System;
using System.Collections.Generic;
using System.Drawing;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace Toolbox.Library.Forms
{
    public class STButton : Button
    {
        public STButton()
        {
            BackColor = FormThemes.BaseTheme.FormBackColor;
            ForeColor = FormThemes.BaseTheme.FormForeColor;

            EnabledChanged += Button1_EnabledChanged;
            Paint += btn_Paint;

            if (FormThemes.ActivePreset == FormThemes.Preset.Dark)
            {
                FlatStyle = FlatStyle.Flat;
            }
            if (FormThemes.ActivePreset == FormThemes.Preset.White)
                FlatStyle = FlatStyle.Standard;
        }

        public override void NotifyDefault(bool value)
        {
            base.NotifyDefault(false);
        }

        private void Button1_EnabledChanged(object sender, System.EventArgs e)
        {
            var btn = (Button)sender;
            ForeColor = btn.Enabled == false ? FormThemes.BaseTheme.DisabledItemColor : FormThemes.BaseTheme.FormForeColor;
            BackColor = btn.Enabled == false ? FormThemes.BaseTheme.FormBackColor : FormThemes.BaseTheme.FormBackColor;
        }
        private void btn_Paint(object sender, PaintEventArgs e)
        {

        }
    }
}