ExtendedContextMenuStrip

Use it anywhere a ContextMenuStrip is used – as a control's ContextMenuStrip, or shown from code with Show(). Items, events and keyboard handling are those of the standard menu; only the drawing changes.

Themes

The light themes draw black text on white, the dark themes white text on a charcoal background. Each has variants with a shaded image margin down the left side (RendererThemeKind.ExtendedLight, RendererThemeKind.ExtendedDark), orange selection colours on the item under the pointer (RendererThemeKind.ExtendedSelectionLight, RendererThemeKind.ExtendedSelectionDark), or a thin line arrow for submenus (RendererThemeKind.LightWithSkinnyMenuExpansionArrow, RendererThemeKind.DarkWithSkinnyMenuExpansionArrow). Check marks are drawn as a tick in a square, in the theme's arrow colour.

Your own colours

Pass a colour table to the constructor. It must derive from ProfessionalColorTable – which supplies the backgrounds, borders and highlight colours – and implement IMenuStripColorTable, which adds the text, arrow and check-mark colours and the arrow shape.

A dark-themed menu for the rows of an orders grid.

using System;
using System.Windows.Forms;
using Binarymission.WinForms.Controls.ExtendedMenuControls;
using Binarymission.WinForms.Controls.ExtendedMenuControls.Models;

ExtendedContextMenuStrip orderMenu = new ExtendedContextMenuStrip
{
    RendererTheme = RendererThemeKind.ExtendedSelectionDark
};

orderMenu.Items.Add("Open order", null, (s, e) => OpenSelectedOrder());
orderMenu.Items.Add("Print invoice", null, (s, e) => PrintSelectedInvoice());
orderMenu.Items.Add(new ToolStripSeparator());

ToolStripMenuItem status = new ToolStripMenuItem("Set status");
status.DropDownItems.Add("Dispatched");
status.DropDownItems.Add("Delivered");
status.DropDownItems.Add("Cancelled");
orderMenu.Items.Add(status);

ordersGrid.ContextMenuStrip = orderMenu;

Colours of your own: derive from ProfessionalColorTable and add IMenuStripColorTable.

using System.Drawing;
using System.Windows.Forms;
using Binarymission.WinForms.Controls.ExtendedMenuControls.Abstractions;
using Binarymission.WinForms.Controls.ExtendedMenuControls.Models;

public sealed class BrandMenuColours : ProfessionalColorTable, IMenuStripColorTable
{
    public override Color ToolStripDropDownBackground => Color.FromArgb(250, 248, 240);
    public override Color ImageMarginGradientBegin => Color.FromArgb(240, 232, 210);
    public override Color ImageMarginGradientMiddle => Color.FromArgb(240, 232, 210);
    public override Color ImageMarginGradientEnd => Color.FromArgb(240, 232, 210);
    public override Color MenuItemSelected => Color.FromArgb(0, 102, 102);
    public override Color MenuItemBorder => Color.FromArgb(0, 102, 102);

    public Color ArrowColor => Color.FromArgb(0, 102, 102);
    public Color ArrowColorWhenItemSelected => Color.White;
    public Color MenuItemTextColor => Color.FromArgb(40, 40, 40);
    public Color MenuItemTextColorWhenItemSelected => Color.White;
    public ArrowKind ArrowRenderingStyle => ArrowKind.Skinny;
}

ExtendedContextMenuStrip menu = new ExtendedContextMenuStrip(new BrandMenuColours());