private unsafe Bitmap CalculateColorPickerBitmap(float hue)
        {
            Bitmap bitmap = new Bitmap(120, 120);
            Color  color  = Color.FromKnownColor(KnownColor.Control);
            float  num    = hue * -0.0174532924f;
            double num2   = (double)num;
            float  num3   = (float)Math.Cos(num2);
            GLine  gLine  = (float)Math.Sin(num2);
            double num4   = (double)(num + 2.09439516f);
            float  num5   = (float)Math.Cos(num4);
            float  num6   = num5;
            float  num7   = (float)Math.Sin(num4);
            GLine  gLine2 = num7;
            double num8   = (double)(num - 2.09439516f);
            float  num9   = (float)Math.Cos(num8);
            GLine  gLine3 = (float)Math.Sin(num8);
            int    num10  = 0;

            do
            {
                float num11 = (float)(num10 - 60);
                float num12 = num11 + 0.5f;
                int   num13 = -60;
                do
                {
                    float num14    = num12;
                    float num15    = (float)num13;
                    float num16    = num15 + 0.5f;
                    float num17    = num16;
                    float expr_AC  = num17;
                    float arg_B2_0 = expr_AC * expr_AC;
                    float expr_B0  = num14;
                    float num18    = arg_B2_0 + expr_B0 * expr_B0;
                    if (num18 > 3685.353f)
                    {
                        bitmap.SetPixel(num13 + 60, num10, color);
                    }
                    else if (num18 < 2236.61768f)
                    {
                        int   num19 = 0;
                        int   num20 = 0;
                        float num21 = num15 + 0.125f;
                        float num22 = num15 + 0.375f;
                        float num23 = num15 + 0.625f;
                        float num24 = num15 + 0.875f;
                        do
                        {
                            GPoint2 gPoint = num21;
                            float   num25  = ((float)num20 + 0.5f) * 0.25f + num11;
                            *(ref gPoint + 4) = num25;
                            if (*(ref gPoint + 4) * num3 + gPoint * gLine - 22.5f < 0f && gPoint * gLine2 + *(ref gPoint + 4) * num6 - 22.5f < 0f && gPoint * gLine3 + *(ref gPoint + 4) * num9 - 22.5f < 0f)
                            {
                                num19++;
                            }
                            gPoint            = num22;
                            *(ref gPoint + 4) = num25;
                            if (*(ref gPoint + 4) * num3 + gPoint * gLine - 22.5f < 0f && gPoint * gLine2 + *(ref gPoint + 4) * num6 - 22.5f < 0f && gPoint * gLine3 + *(ref gPoint + 4) * num9 - 22.5f < 0f)
                            {
                                num19++;
                            }
                            gPoint            = num23;
                            *(ref gPoint + 4) = num25;
                            if (*(ref gPoint + 4) * num3 + gPoint * gLine - 22.5f < 0f && gPoint * gLine2 + *(ref gPoint + 4) * num6 - 22.5f < 0f && gPoint * gLine3 + *(ref gPoint + 4) * num9 - 22.5f < 0f)
                            {
                                num19++;
                            }
                            gPoint            = num24;
                            *(ref gPoint + 4) = num25;
                            if (*(ref gPoint + 4) * num3 + gPoint * gLine - 22.5f < 0f && gPoint * gLine2 + *(ref gPoint + 4) * num6 - 22.5f < 0f && gPoint * gLine3 + *(ref gPoint + 4) * num9 - 22.5f < 0f)
                            {
                                num19++;
                            }
                            num20++;
                        }while (num20 < 4);
                        if (num19 != 0)
                        {
                            GPoint2 gPoint2 = num16;
                            *(ref gPoint2 + 4) = num12;
                            float num26 = num5;
                            float num27 = num7;
                            float num28 = (num27 * gPoint2 + num26 * *(ref gPoint2 + 4) + 45f) * 0.0148148146f;
                            float num29;
                            if (num28 <= 0f)
                            {
                                num29 = 0f;
                                goto IL_32A;
                            }
                            num29 = num28;
                            if (num28 < 1f)
                            {
                                goto IL_32A;
                            }
                            float num30 = 1f;
IL_337:
                            double num31 = (double)(num + 3.66519165f);
                            float num32 = (float)Math.Cos(num31);
                            float num33 = (float)Math.Sin(num31);
                            float num34 = num33 * gPoint2 + num32 * *(ref gPoint2 + 4);
                            if (num30 <= 0.001f)
                            {
                                goto IL_3A2;
                            }
                            num34 = num34 / num30 * 0.0222222228f / (float)Math.Sqrt(3.0) + 0.5f;
                            if (num34 <= 0f)
                            {
                                goto IL_3A2;
                            }
                            float num35 = num34;
                            if (num34 < 1f)
                            {
                                goto IL_3B4;
                            }
                            float num36 = 1f;
IL_3C1:
                            GColor gColor;
                            *(ref gColor + 8)  = 0f;
                            *(ref gColor + 4)  = 0f;
                            gColor             = 0f;
                            *(ref gColor + 12) = 1f;
                            < Module >.GColor.FromHSV(ref gColor, (int)((double)hue), (int)((double)(num36 * 100f)), (int)((double)(num30 * 100f)));
                            if (num19 == 16)
                            {
                                Color color2 = Color.FromArgb(255, (int)(gColor * 255f), (int)((double)(*(ref gColor + 4) * 255f)), (int)((double)(*(ref gColor + 8) * 255f)));
                                bitmap.SetPixel(num13 + 60, num10, color2);
                                goto IL_8D1;
                            }
                            float num37  = (float)num19 * 0.0625f;
                            float num38  = 1f - num37;
                            Color color3 = Color.FromArgb(255, (int)((float)color.R * num38 + num37 * gColor * 255f), (int)((double)((float)color.G * num38 + num37 * *(ref gColor + 4) * 255f)), (int)((double)((float)color.B * num38 + num37 * *(ref gColor + 8) * 255f)));
                            bitmap.SetPixel(num13 + 60, num10, color3);
                            goto IL_8D1;
IL_3B4:
                            num36 = num35;
                            goto IL_3C1;
IL_3A2:
                            num35 = 0f;
                            goto IL_3B4;
IL_32A:
                            num30 = num29;
                            goto IL_337;
                        }
                        bitmap.SetPixel(num13 + 60, num10, color);
                    }