Refactore Minesweeper, Playfield

src/main/java/Minesweeper/MinesweeperGame.java

@@ -1,6 +1,5 @@
 package Minesweeper;
 
-import javax.swing.JButton;
 import javax.swing.JFrame;
 import javax.swing.JPanel;
 
@@ -18,9 +17,9 @@ public class MinesweeperGame extends JPanel {
 
 	public static void main(String[] args) {
 		JFrame f = new JFrame();
-		MinesweeperGame ttt = new MinesweeperGame(8, 10);
+		MinesweeperGame MsG = new MinesweeperGame(8, 10);
 
-		f.add(ttt);
+		f.add(MsG);
 		f.setSize(WIDTH, HEIGTH);
 		f.setLayout(null);
 		f.setVisible(true);

src/main/java/Minesweeper/Playfield.java

@@ -1,6 +1,5 @@
 package Minesweeper;
 
-import java.awt.Color;
 import java.awt.Point;
 
 import javax.swing.JOptionPane;