ARCed.UI.VS2005DockPaneCaption.DrawCaption C# (CSharp) Method

        private void DrawCaption(Graphics g)
        {
            if (ClientRectangle.Width == 0 || ClientRectangle.Height == 0)
                return;

            if (DockPane.IsActivated)
            {
                Color startColor = DockPane.DockPanel.Skin.DockPaneStripSkin.ToolWindowGradient.ActiveCaptionGradient.StartColor;
                Color endColor = DockPane.DockPanel.Skin.DockPaneStripSkin.ToolWindowGradient.ActiveCaptionGradient.EndColor;
                LinearGradientMode gradientMode = DockPane.DockPanel.Skin.DockPaneStripSkin.ToolWindowGradient.ActiveCaptionGradient.LinearGradientMode;
                using (var brush = new LinearGradientBrush(ClientRectangle, startColor, endColor, gradientMode))
                {
                    brush.Blend = ActiveBackColorGradientBlend;
                    g.FillRectangle(brush, ClientRectangle);
                }
            }
            else
            {
                Color startColor = DockPane.DockPanel.Skin.DockPaneStripSkin.ToolWindowGradient.InactiveCaptionGradient.StartColor;
                Color endColor = DockPane.DockPanel.Skin.DockPaneStripSkin.ToolWindowGradient.InactiveCaptionGradient.EndColor;
                LinearGradientMode gradientMode = DockPane.DockPanel.Skin.DockPaneStripSkin.ToolWindowGradient.InactiveCaptionGradient.LinearGradientMode;
                using (var brush = new LinearGradientBrush(ClientRectangle, startColor, endColor, gradientMode))
                {
                    g.FillRectangle(brush, ClientRectangle);
                }
            }

            Rectangle rectCaption = ClientRectangle;

            Rectangle rectCaptionText = rectCaption;
            rectCaptionText.X += TextGapLeft;
            rectCaptionText.Width -= TextGapLeft + TextGapRight;
            rectCaptionText.Width -= ButtonGapLeft + this.ButtonClose.Width + ButtonGapRight;
            if (this.ShouldShowAutoHideButton)
                rectCaptionText.Width -= this.ButtonAutoHide.Width + ButtonGapBetween;
            if (HasTabPageContextMenu)
                rectCaptionText.Width -= this.ButtonOptions.Width + ButtonGapBetween;
            rectCaptionText.Y += TextGapTop;
            rectCaptionText.Height -= TextGapTop + TextGapBottom;

            Color colorText;
            if (DockPane.IsActivated)
                colorText = DockPane.DockPanel.Skin.DockPaneStripSkin.ToolWindowGradient.ActiveCaptionGradient.TextColor;
            else
                colorText = DockPane.DockPanel.Skin.DockPaneStripSkin.ToolWindowGradient.InactiveCaptionGradient.TextColor;

            TextRenderer.DrawText(g, DockPane.CaptionText, this.TextFont, DrawHelper.RtlTransform(this, rectCaptionText), colorText, this.TextFormat);
        }