diff --git a/src/main/java/ChatGUI.java b/src/main/java/ChatGUI.java
index d5efb58..743e4f4 100644
--- a/src/main/java/ChatGUI.java
+++ b/src/main/java/ChatGUI.java
@@ -17,7 +17,7 @@ import javax.swing.JTextArea;
 import javax.swing.JTextField;
 
 public class ChatGUI implements ActionListener {
-	
+
 	// Menu items for font sizes
 	JMenuItem small = new JMenuItem("small-font");
 	JMenuItem medium = new JMenuItem("medium-font");
@@ -28,9 +28,9 @@ public class ChatGUI implements ActionListener {
 	JMenuItem red = new JMenuItem("red");
 	JMenuItem blue = new JMenuItem("blue");
 	JMenuItem green = new JMenuItem("green");
-	
+
 	JMenuItem exit = new JMenuItem("Exit");
-	
+
 	JTextField inputTextField = new JTextField();
 	JTextArea outputTextArea = new JTextArea();
 	JButton sendButton = new JButton("Senden");
@@ -44,11 +44,11 @@ public class ChatGUI implements ActionListener {
 		gui.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 		gui.setTitle("java-chat");
 		gui.setLayout(new BorderLayout());
-		
+
 		// Set up the menu bar
 		JMenuBar bar = new JMenuBar();
 		gui.setJMenuBar(bar);
-		
+
 		// Create menu items and menus
 		JMenu options = new JMenu("options");
 		JMenu colors = new JMenu("font-colors");
@@ -65,11 +65,11 @@ public class ChatGUI implements ActionListener {
 		colors.add(red);
 		colors.add(blue);
 		colors.add(green);
-		
+
 		size.add(small);
 		size.add(medium);
 		size.add(large);
-		
+
 		// Register action listeners for menu items
 		red.addActionListener(this);
 		blue.addActionListener(this);
@@ -82,19 +82,20 @@ public class ChatGUI implements ActionListener {
 		exit.addActionListener(this);
 
 		bar.add(menu);
-		
+
 		// Set up the output text area with scrolling
 		JScrollPane outputScrollPane = new JScrollPane(outputTextArea);
 		gui.add(outputScrollPane, BorderLayout.CENTER);
 		
+		// Set up the input panel with text field and send button
 		JPanel inputPanel = new JPanel(new BorderLayout());
-        inputPanel.add(inputTextField, BorderLayout.CENTER);
-        inputPanel.add(sendButton, BorderLayout.EAST);
-        gui.add(inputPanel, BorderLayout.SOUTH);
+		inputPanel.add(inputTextField, BorderLayout.CENTER);
+		inputPanel.add(sendButton, BorderLayout.EAST);
+		gui.add(inputPanel, BorderLayout.SOUTH);
 
 		inputTextField.addActionListener(this);
 		sendButton.addActionListener(this);
-		
+
 		// Set the size of the GUI to be a quarter of the screen size
 		Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
 		int quarterWidth = screenSize.width / 2;
@@ -102,6 +103,7 @@ public class ChatGUI implements ActionListener {
 		gui.setSize(quarterWidth, quarterHeight);
 		gui.setVisible(true);
 	}
+
 	// main methode zum Testen, müsste bei Implementation entfernt werden
 	public static void main(String[] args) {
 
@@ -114,13 +116,13 @@ public class ChatGUI implements ActionListener {
 			System.exit(0);
 		}
 		if (e.getSource() == inputTextField || e.getSource() == sendButton) {
-            String inputText = inputTextField.getText();
-            outputTextArea.append(inputText + "\n");
-            inputTextField.setText("");
+			String inputText = inputTextField.getText();
+			outputTextArea.append(inputText + "\n");
+			inputTextField.setText("");
 		}
 		if (e.getSource() == red) {
 			outputTextArea.setForeground(Color.RED);
-		
+
 		} else if (e.getSource() == blue) {
 			outputTextArea.setForeground(Color.BLUE);
 		} else if (e.getSource() == black) {
@@ -128,17 +130,15 @@ public class ChatGUI implements ActionListener {
 		} else if (e.getSource() == green) {
 			outputTextArea.setForeground(Color.GREEN);
 		}
-        	if(e.getSource() == small) {
-                outputTextArea.setFont(outputTextArea.getFont().deriveFont(Font.PLAIN, 12));
-        	}
-        	if(e.getSource() == medium) {
-                outputTextArea.setFont(outputTextArea.getFont().deriveFont(Font.PLAIN, 16));
-        	}
-        	if(e.getSource() == large) {
-                outputTextArea.setFont(outputTextArea.getFont().deriveFont(Font.PLAIN, 20));
-        	}
-
-
+		if (e.getSource() == small) {
+			outputTextArea.setFont(outputTextArea.getFont().deriveFont(Font.PLAIN, 12));
+		}
+		if (e.getSource() == medium) {
+			outputTextArea.setFont(outputTextArea.getFont().deriveFont(Font.PLAIN, 16));
+		}
+		if (e.getSource() == large) {
+			outputTextArea.setFont(outputTextArea.getFont().deriveFont(Font.PLAIN, 20));
+		}
 
 	}
 }