Brush size selector - tool allowing the user to pick the size of the brush for drawing
Inheritance: ToolBoxToolTouchBase, IBrushSizeSelector
        /// <summary>
        /// Creates the brush size selector.
        /// </summary>
        /// <param name='startColor' The color we will start drawing with />
        /// <param name='layoutBrushSizeSelector' The layout information for this brush size selector />
        private BrushSizeSelector CreateBrushSizeSelector(Color startColor, ToolboxLayoutDefinitionPaintToolsBrushSizeSelector layoutBrushSizeSelector)
        {
            var brushSizeSelector = new BrushSizeSelector(
                this.GraphicsDisplay,
                new BrushSizeSelectorDefinition(startColor, layoutBrushSizeSelector, this.Scale));

            this.SetBrushSizeRectange(brushSizeSelector.BrushSize);

            brushSizeSelector.BrushSizeChanged += (sender, e) => {
                this.SetBrushSizeRectange(brushSizeSelector.BrushSize);
            };

            return brushSizeSelector;
        }