优化Color类

CPF/Drawing/Color.cs

@@ -2490,6 +2490,18 @@ namespace CPF.Drawing
             }
         }
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="v"></param>
+        /// <param name="darkKhaki"></param>
+        /// <returns></returns>
+        public static Color FromArgb(int v, Color darkKhaki)
+        {
+            Color c1 = Color.FromArgb(0xff, darkKhaki.R, darkKhaki.G, darkKhaki.B);
+            return c1;
+        }
+
         #endregion Private Methods
 
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