`DarkModeForms.DarkModeCS` with `RoundedPanels = true` make missing scrollbar in `FlowLayoutPanel` , `TableLayoutPanel`, Panel with ClearMode

[MauNguyenVan]

DarkModeForms.DarkModeCS with RoundedPanels = true make missing scrollbar in FlowLayoutPanel and TableLayoutPanel

Default behavior (Ok)

After apply DarkModeForms.DarkModeCS with RoundedPanels = true (issue)

[MauNguyenVan]

//Logic form
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace RCC.Core
{
    public partial class ScrollBarForm : Form
    {
        private DarkModeForms.DarkModeCS dm = null;
        public ScrollBarForm()
        {
            InitializeComponent();
            dm = new DarkModeForms.DarkModeCS(this)
            {
                ColorMode = DarkModeForms.DarkModeCS.DisplayMode.ClearMode,
                RoundedPanels = true,
            };
        }
        private void button1_Click(object sender, EventArgs e)
        {
            flowLayoutPanel1.AutoScroll = true;
            flowLayoutPanel1.AutoSizeMode = AutoSizeMode.GrowAndShrink;
            flowLayoutPanel1.Controls.Add(new Button()
            {
                Text = "New Button",
                //  Dock = DockStyle.Fill,
                //    Margin = new Padding(0),
                ForeColor = Color.Green,
                Width = 150,
                Height = 50,
            });
        }

        private void button2_Click(object sender, EventArgs e)
        {
            this.tableLayoutPanel1.AutoScroll = true;
            //this.tableLayoutPanel1.AutoSizeMode = AutoSizeMode.GrowAndShrink;
            this.tableLayoutPanel1.CellBorderStyle = TableLayoutPanelCellBorderStyle.Single;
            this.tableLayoutPanel1.ColumnCount++;
            this.tableLayoutPanel1.RowCount++;
            this.tableLayoutPanel1.RowStyles.Add(new RowStyle(SizeType.Absolute, 50));
            this.tableLayoutPanel1.ColumnStyles.Add(new ColumnStyle(SizeType.Absolute, 50));
            this.tableLayoutPanel1.Controls.Add(new Button()
            {
                Text = "New Button in TableLayoutPanel",
                Dock = DockStyle.Fill,
                //Margin = new Padding(0),
                ForeColor = Color.Green,
                //Width = 500,
                // Height = 4000,
            }, this.tableLayoutPanel1.ColumnCount - 1, this.tableLayoutPanel1.RowCount - 1);


        }

        private void button3_Click(object sender, EventArgs e)
        {
            this.panel1.AutoScroll = true;
            this.panel1.Controls.Add(new Button()
            {
                Text = "New Button in Panel",
                //Dock = DockStyle.Fill,
                //Margin = new Padding(0),
                ForeColor = Color.Green,
                Width = 500,
                Height = 4000,
            });
        }

        private void button5_Click(object sender, EventArgs e)
        {
            flowLayoutPanel1.Controls.RemoveAt(flowLayoutPanel1.Controls.Count - 1);
        }

        private void button4_Click(object sender, EventArgs e)
        {
            this.tableLayoutPanel1.Controls.RemoveAt(this.tableLayoutPanel1.Controls.Count - 1);
            this.tableLayoutPanel1.ColumnCount--;
            this.tableLayoutPanel1.RowCount--;
            this.tableLayoutPanel1.RowStyles.RemoveAt(this.tableLayoutPanel1.RowCount);
            this.tableLayoutPanel1.ColumnStyles.RemoveAt(this.tableLayoutPanel1.ColumnCount);
        }
    }
}

///Designer form 
namespace RCC.Core
{
    partial class ScrollBarForm
    {
        /// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Windows Form Designer generated code

        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
        {
            tableLayoutPanel1 = new TableLayoutPanel();
            flowLayoutPanel1 = new FlowLayoutPanel();
            button1 = new Button();
            button2 = new Button();
            button3 = new Button();
            panel1 = new Panel();
            button4 = new Button();
            button5 = new Button();
            SuspendLayout();
            // 
            // tableLayoutPanel1
            // 
            tableLayoutPanel1.ColumnCount = 2;
            tableLayoutPanel1.ColumnStyles.Add(new ColumnStyle(SizeType.Absolute, 20F));
            tableLayoutPanel1.ColumnStyles.Add(new ColumnStyle());
            tableLayoutPanel1.Location = new Point(486, 41);
            tableLayoutPanel1.Name = "tableLayoutPanel1";
            tableLayoutPanel1.RowCount = 2;
            tableLayoutPanel1.RowStyles.Add(new RowStyle());
            tableLayoutPanel1.RowStyles.Add(new RowStyle(SizeType.Absolute, 20F));
            tableLayoutPanel1.Size = new Size(292, 255);
            tableLayoutPanel1.TabIndex = 0;
            // 
            // flowLayoutPanel1
            // 
            flowLayoutPanel1.BorderStyle = BorderStyle.FixedSingle;
            flowLayoutPanel1.Location = new Point(12, 41);
            flowLayoutPanel1.Name = "flowLayoutPanel1";
            flowLayoutPanel1.Size = new Size(229, 255);
            flowLayoutPanel1.TabIndex = 2;
            // 
            // button1
            // 
            button1.Location = new Point(12, 12);
            button1.Name = "button1";
            button1.Size = new Size(134, 23);
            button1.TabIndex = 3;
            button1.Text = "flowLayoutPanel1";
            button1.UseVisualStyleBackColor = true;
            button1.Click += button1_Click;
            // 
            // button2
            // 
            button2.Location = new Point(486, 12);
            button2.Name = "button2";
            button2.Size = new Size(292, 23);
            button2.TabIndex = 3;
            button2.Text = "tableLayoutPanel1";
            button2.UseVisualStyleBackColor = true;
            button2.Click += button2_Click;
            // 
            // button3
            // 
            button3.Location = new Point(266, 12);
            button3.Name = "button3";
            button3.Size = new Size(200, 23);
            button3.TabIndex = 3;
            button3.Text = "panel1";
            button3.UseVisualStyleBackColor = true;
            button3.Click += button3_Click;
            // 
            // panel1
            // 
            panel1.Location = new Point(266, 41);
            panel1.Name = "panel1";
            panel1.Size = new Size(200, 255);
            panel1.TabIndex = 4;
            // 
            // button4
            // 
            button4.Location = new Point(486, 302);
            button4.Name = "button4";
            button4.Size = new Size(292, 23);
            button4.TabIndex = 3;
            button4.Text = "tableLayoutPanel1";
            button4.UseVisualStyleBackColor = true;
            button4.Click += button4_Click;
            // 
            // button5
            // 
            button5.Location = new Point(12, 302);
            button5.Name = "button5";
            button5.Size = new Size(134, 23);
            button5.TabIndex = 3;
            button5.Text = "flowLayoutPanel1";
            button5.UseVisualStyleBackColor = true;
            button5.Click += button5_Click;
            // 
            // ScrollBar
            // 
            AutoScaleDimensions = new SizeF(7F, 15F);
            AutoScaleMode = AutoScaleMode.Font;
            ClientSize = new Size(800, 450);
            Controls.Add(panel1);
            Controls.Add(button5);
            Controls.Add(button1);
            Controls.Add(button3);
            Controls.Add(button4);
            Controls.Add(button2);
            Controls.Add(flowLayoutPanel1);
            Controls.Add(tableLayoutPanel1);
            Name = "ScrollBar";
            Text = "ScrollBar";
            ResumeLayout(false);
        }

        #endregion

        private TableLayoutPanel tableLayoutPanel1;
        private FlowLayoutPanel flowLayoutPanel1;
        private Button button1;
        private Button button2;
        private Button button3;
        private Panel panel1;
        private Button button4;
        private Button button5;
    }
}