GetClosestColor implemented

Global.cs

@@ -6,6 +6,7 @@ global using System.Collections.Generic;
 global using System.Linq;
 global using System.Text;
 global using System.Threading.Tasks;
+global using System.Drawing;
 
 global using static Xorog.UniversalExtensions.UniversalExtensionsEnums;
 global using static Xorog.UniversalExtensions.Internal;

Internal/Internal.cs

@@ -76,6 +76,14 @@ internal static class Internal
                 return _timespan.ToString();
         }
     }
+    internal static int GetDiff(Color color, Color baseColor)
+    {
+        int a = color.A - baseColor.A,
+            r = color.R - baseColor.R,
+            g = color.G - baseColor.G,
+            b = color.B - baseColor.B;
+        return a * a + r * r + g * g + b * b;
+    }
 }
 
 public class InternalSheduler

UniversalExtensions.cs

@@ -492,6 +492,19 @@ public static class UniversalExtensions
         return string.Concat(country.ToUpper().Select(x => char.ConvertFromUtf32(x + 0x1F1A5)));
     }
 
+
+    /// <summary>
+    /// Get closest Color to given Color
+    /// </summary>
+    /// <param name="colorArray"></param>
+    /// <param name="baseColor"></param>
+    /// <returns></returns>
+    public static Color GetClosestColor(List<Color> colorArray, Color baseColor)
+    {
+        var colors = colorArray.Select(x => new { Value = x, Diff = Internal.GetDiff(x, baseColor) }).ToList();
+        var min = colors.Min(x => x.Diff);
+        return colors.Find(x => x.Diff == min).Value;
+    }
 }
 
 public static class StringExt