MonoGame.Extended/source/MonoGame.Extended.Gui/Controls/Box.cs

using System.Collections.Generic;
using System.Linq;
using Microsoft.Xna.Framework;

namespace MonoGame.Extended.Gui.Controls
{
    public class Box : Control
    {
        public override IEnumerable<Control> Children { get; } = Enumerable.Empty<Control>();

        public override Size GetContentSize(IGuiContext context)
        {
            return new Size(Width, Height);
        }

        public Color FillColor { get; set; } = Color.White;

        public override void Draw(IGuiContext context, IGuiRenderer renderer, float deltaSeconds)
        {
            base.Draw(context, renderer, deltaSeconds);
            renderer.FillRectangle(ContentRectangle, FillColor);
        }
    }
}