ComponentFactory.Krypton.Toolkit.RenderStandard.DrawRibbonAppButtonUpperHalf C# (CSharp) Method

        protected virtual void DrawRibbonAppButtonUpperHalf(Graphics g,
                                                            MementoRibbonAppButton memento,
                                                            PaletteState state,
                                                            Color topDark,
                                                            Color bottomDark,
                                                            Color topLight,
                                                            Color topMedium,
                                                            bool trackBorderAsPressed)
        {
            bool pressed = (state == PaletteState.Pressed);
            bool tracking = (state == PaletteState.Tracking);

            // Override tracking/pressed states?
            if (tracking && trackBorderAsPressed)
            {
                pressed = true;
                tracking = false;
            }

            if (!pressed)
            {
                Color[] colorsUpperHalf = new Color[] { topDark, topMedium, topLight, topLight, topMedium, topDark };
                float[] posUpperHalf = new float[] { 0.0f, 0.2f, 0.4f, 0.6f, 0.8f, 1.0f };

                ColorBlend blendUpperHalf = new ColorBlend();
                blendUpperHalf.Colors = colorsUpperHalf;
                blendUpperHalf.Positions = posUpperHalf;
                memento.brushUpper1.InterpolationColors = blendUpperHalf;

                g.FillPie(memento.brushUpper1, memento.rect.X, memento.rect.Y, memento.rect.Width, memento.rect.Height, 180, 180);
            }

            Color c1 = _whiten10;
            Color c2 = Color.FromArgb(100, topDark);

            if (tracking)
            {
                c1 = _whiten200;
                c2 = Color.FromArgb(200, bottomDark);
            }

            if (pressed)
            {
                c1 = Color.White;
                c2 = topDark;
            }

            using (LinearGradientBrush brushUpper2 = new LinearGradientBrush(memento.rect, c1, c2, LinearGradientMode.Vertical))
                g.FillPie(brushUpper2, memento.rect.X, memento.rect.Y, memento.rect.Width, memento.rect.Height, 180, 180);
        }