public static void OptionShowWhiteNumber()
            {
                ShadingView shadingView = FindActiveShadingView();

                if (shadingView == null)
                {
                    return;
                }

                shadingView.setting.whiteNumber = !shadingView.setting.whiteNumber;
                shadingView.RefreshShading();
            }
            public static void OptionOpaqueBlack()
            {
                ShadingView shadingView = FindActiveShadingView();

                if (shadingView == null)
                {
                    return;
                }

                shadingView.setting.opaqueBlack = !shadingView.setting.opaqueBlack;
                shadingView.RefreshShading();
            }
            public static void OptionAdjustSaturation(bool increase)
            {
                ShadingView shadingView = FindActiveShadingView();

                if (shadingView == null)
                {
                    return;
                }

                float saturation = shadingView.setting.overdrawColorSaturation;

                if (increase)
                {
                    if (saturation > 30)
                    {
                        saturation += 10;
                    }
                    else if (saturation > 10)
                    {
                        saturation += 5;
                    }
                    else
                    {
                        saturation += 1;
                    }
                    saturation = Mathf.Min(100, saturation);
                }
                else
                {
                    if (saturation <= 10)
                    {
                        saturation -= 1;
                    }
                    else if (saturation <= 30)
                    {
                        saturation -= 5;
                    }
                    else
                    {
                        saturation -= 10;
                    }
                    saturation = Mathf.Max(1, saturation);
                    shadingView.setting.overdrawColorSaturation = saturation;
                }

                shadingView.setting.overdrawColorSaturation = saturation;
                shadingView.RefreshShading();
            }