правки

Battleship/Battleship/DrawningBattleship.cs

@@ -48,5 +48,9 @@ namespace Battleship.DrawningObjects
                 g.DrawRectangle(pen, _startPosX + 75, _startPosY + 70, 40, 10);
             }
         }
+        public void SetAddColor(Color color)
+        {
+            ((EntityBattleship)EntityShip).AdditionalColor = color;
+        }
     }
 }

Battleship/Battleship/DrawningShip.cs

@@ -224,6 +224,14 @@ namespace Battleship.DrawningObjects
                     break;
             }
         }
+        public void SetColor(Color color)
+        {
+            if (EntityShip == null)
+            {
+                return;
+            }
+            EntityShip.BodyColor = color;
+        }
     }
 }
 

Battleship/Battleship/EntityBattleship.cs

@@ -10,7 +10,7 @@ namespace Battleship.Entities
     internal class EntityBattleship: EntityShip
     {
         
-        public Color AdditionalColor { get; private set; }
+        public Color AdditionalColor { get; set; }
         /// <summary>
         /// Признак (опция) наличия башни
         /// </summary>
@@ -39,10 +39,10 @@ namespace Battleship.Entities
             Tower = tower;
             Section = section;
         }
-
+        public void setAdditionalColor(Color color)
-        internal void setAdditionalColor(Color color)
         {
             AdditionalColor = color;
         }
+
     }
 }

Battleship/Battleship/EntityShip.cs

@@ -19,7 +19,7 @@ namespace Battleship.Entities
         /// <summary>
         /// Основной цвет
         /// </summary>
-        public Color BodyColor { get; private set; }
+        public Color BodyColor { get; set; }
         /// <summary>
         /// Дополнительный цвет (для опциональных элементов)
         /// </summary>