Some changes are made in the Panel and Window size to look Better

src/DataOfSquare.java

@@ -11,9 +11,9 @@ public class DataOfSquare {
 	public DataOfSquare(int col){
 
 		//Lets add the color to the arrayList
-		C.add(Color.darkGray);//0
-		C.add(Color.BLUE);    //1
-		C.add(Color.white);   //2
+		C.add(Color.BLACK);//0
+		C.add(Color.GREEN);    //1
+		C.add(Color.YELLOW);   //2
 		color=col;
 		square = new SquarePanel(C.get(color));
 	}

src/Main.java

@@ -9,7 +9,7 @@ public static void main(String[] args) {
 
 		//Setting up the window settings
 		f1.setTitle("Snake");
-		f1.setSize(300,300);
+		f1.setSize(100,200);
 		f1.setVisible(true);
 		f1.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);             
 

src/ThreadsController.java

@@ -5,8 +5,8 @@
 public class ThreadsController extends Thread {
 	 ArrayList<ArrayList<DataOfSquare>> Squares= new ArrayList<ArrayList<DataOfSquare>>();
 	 Tuple headSnakePos;
-	 int sizeSnake=3;
-	 long speed = 50;
+	 int sizeSnake=2;
+	 long speed = 70;
 	 public static int directionSnake ;
 
 	 ArrayList<Tuple> positions = new ArrayList<Tuple>();