Avalonia/src/Avalonia.Controls/DropDownButton.cs

namespace Avalonia.Controls
{
    /// <summary>
    /// A button with an added drop-down chevron to visually indicate it has a flyout with additional actions.
    /// </summary>
    public class DropDownButton : Button
    {
        /// <summary>
        /// Initializes a new instance of the <see cref="DropDownButton"/> class.
        /// </summary>
        public DropDownButton()
        {
        }
    }
}