A suggestion for property cleanup

[Deleted user]

For custom controls, replace hidden properties with a ControlDesigner. I have created an example for you, which can be readily used with the DarkRadioButton control. This way anything in the "Property Region" that isn't custom can be removed.

using System.Collections;
using System.Collections.Generic;
using System.Windows.Forms.Design;

namespace DarkUI.Controls.Design
{
    public class DarkUIRadioButtonDesigner : ControlDesigner
    {
        protected override void PreFilterProperties(IDictionary Properties)
        {
            List<string> PropList = new List<string>
            {
                "Appearance",
                "AutoEllipsis",
                "BackgroundImage",
                "BackgroundImageLayout",
                "FlatAppearance",
                "FlatStyle",
                "Image",
                "ImageAlign",
                "ImageIndex",
                "ImageKey",
                "ImageList",
                "TextAlign",
                "TextImageRelation",
                "UseCompatibleTextRendering",
                "UseVisualStyleBackColor"
            };
            if (Properties != null)
            {
                foreach (string Item in PropList)
                {
                    Properties.Remove(Item);
                }
            }
            base.PreFilterProperties(Properties);
        }
    }
}

Usage:

using DarkUI.Config;
using DarkUI.Controls.Designer;
using System;
using System.ComponentModel;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Windows.Forms;

namespace DarkUI.Controls
{
    [Designer(typeof(DarkUIRadioButtonDesigner))]
    public class DarkRadioButton : RadioButton
    {
    }

Excuse my editing, I can't get the grip on .MD clearly. Thanks.