Second draft

src/main/java/com/college/management/AdminDashboard.java

@@ -1,11 +1,13 @@
 package com.college.management;
 
 import javafx.geometry.Insets;
+import javafx.geometry.Pos;
 import javafx.scene.Scene;
 import javafx.scene.control.*;
 import javafx.scene.layout.*;
 import javafx.stage.Stage;
 import java.sql.*;
+import java.util.List;
 import javafx.collections.FXCollections;
 import javafx.collections.ObservableList;
 import javafx.scene.control.cell.PropertyValueFactory;
@@ -23,6 +25,7 @@ public class AdminDashboard {
 
     public void show() {
         BorderPane root = new BorderPane();
+        root.getStyleClass().add("dashboard-root");
 
         // Sidebar
         VBox sidebar = new VBox(10);
@@ -40,12 +43,15 @@ public class AdminDashboard {
         Button btnChat = createSidebarButton("Global Chat");
         Button btnPrivateChat = createSidebarButton("Private Chat");
         Button btnReports = createSidebarButton("Reports");
+        Button btnSettings = createSidebarButton("Settings");
         Button btnLogout = createSidebarButton("Logout");
 
-        sidebar.getChildren().addAll(brand, new Separator(), btnUsers, btnNotices, btnTimetable, btnEvents, btnChat, btnPrivateChat, btnReports, btnLogout);
+        sidebar.getChildren().addAll(brand, new Separator(), btnUsers, btnNotices, btnTimetable, btnEvents, btnChat, btnPrivateChat, btnReports, btnSettings, btnLogout);
 
         root.setLeft(sidebar);
 
+        applyTheme(root);
+
         // Default Content
         showUserManagement(root);
 
@@ -53,9 +59,10 @@ public class AdminDashboard {
         btnNotices.setOnAction(e -> showNoticeManagement(root));
         btnTimetable.setOnAction(e -> showTimetableManagement(root));
         btnEvents.setOnAction(e -> showEventManagement(root));
-        btnChat.setOnAction(e -> showChat(root, "Admin"));
+        btnChat.setOnAction(e -> showChat(root, username, userId));
         btnPrivateChat.setOnAction(e -> root.setCenter(new PrivateChatUI(userId).getView()));
         btnReports.setOnAction(e -> showReports(root));
+        btnSettings.setOnAction(e -> root.setCenter(new SettingsUI(userId, () -> applyTheme(root)).getView()));
         btnLogout.setOnAction(e -> new App().start(stage));
 
         Scene scene = new Scene(root, 900, 600);
@@ -63,6 +70,16 @@ public class AdminDashboard {
         stage.setScene(scene);
     }
 
+    private void applyTheme(BorderPane root) {
+        root.getStylesheets().clear();
+        root.getStylesheets().add(getClass().getResource("/com/college/management/css/chat.css").toExternalForm());
+        UserSettings settings = UserSettings.getSettings(userId);
+        root.getStyleClass().remove("dark-theme");
+        if ("DARK".equals(settings.getTheme())) {
+            root.getStyleClass().add("dark-theme");
+        }
+    }
+
     private void showTimetableManagement(BorderPane root) {
         VBox content = new VBox(15);
         content.setPadding(new Insets(20));
@@ -127,34 +144,40 @@ public class AdminDashboard {
         root.setCenter(content);
     }
 
-    public static void showChat(BorderPane root, String senderName) {
-        VBox content = new VBox(10);
-        content.setPadding(new Insets(20));
-        Label title = new Label("Global Chat / Announcements");
-        title.setStyle("-fx-font-size: 24px; -fx-font-weight: bold;");
+    public static void showChat(BorderPane root, String senderName, int viewerId) {
+        VBox mainBox = new VBox();
 
-        TextArea chatArea = new TextArea();
-        chatArea.setEditable(false);
-        chatArea.setPrefHeight(400);
+        Label title = new Label("Global Chat / Announcements");
+        title.setPadding(new Insets(10));
+        title.setStyle("-fx-font-size: 20px; -fx-font-weight: bold;");
+
+        ScrollPane scrollPane = new ScrollPane();
+        VBox messageContainer = new VBox(15);
+        messageContainer.setPadding(new Insets(20));
+        messageContainer.getStyleClass().add("chat-container");
+        
+        scrollPane.setContent(messageContainer);
+        scrollPane.setFitToWidth(true);
+        scrollPane.setVvalue(1.0);
+        VBox.setVgrow(scrollPane, Priority.ALWAYS);
 
         HBox inputArea = new HBox(10);
+        inputArea.setPadding(new Insets(10));
+        inputArea.setAlignment(Pos.CENTER);
         TextField txtMsg = new TextField();
+        txtMsg.setPromptText("Type a message...");
         txtMsg.setPrefWidth(500);
         Button btnSend = new Button("Send");
+        btnSend.setStyle("-fx-background-color: #128c7e; -fx-text-fill: white; -fx-font-weight: bold;");
 
         Runnable refreshChat = () -> {
-            try (Connection conn = DatabaseManager.getConnection();
-                 Statement stmt = conn.createStatement();
-                 ResultSet rs = stmt.executeQuery("SELECT sender, content, timestamp FROM messages ORDER BY id ASC")) {
-                StringBuilder sb = new StringBuilder();
-                while (rs.next()) {
-                    sb.append("[").append(rs.getString("timestamp")).append("] ")
-                      .append(rs.getString("sender")).append(": ")
-                      .append(rs.getString("content")).append("\n");
-                }
-                chatArea.setText(sb.toString());
-                chatArea.setScrollTop(Double.MAX_VALUE);
-            } catch (SQLException ex) { ex.printStackTrace(); }
+            messageContainer.getChildren().clear();
+            List<ChatMessage> messages = ChatService.getGlobalMessages();
+            for (ChatMessage msg : messages) {
+                boolean isMine = msg.getSenderName().equals(senderName);
+                messageContainer.getChildren().add(PrivateChatUI.createBubble(msg, isMine, viewerId));
+            }
+            scrollPane.setVvalue(1.0);
         };
 
         btnSend.setOnAction(e -> {
@@ -171,8 +194,8 @@ public class AdminDashboard {
 
         refreshChat.run();
         inputArea.getChildren().addAll(txtMsg, btnSend);
-        content.getChildren().addAll(title, chatArea, inputArea);
-        root.setCenter(content);
+        mainBox.getChildren().addAll(title, scrollPane, inputArea);
+        root.setCenter(mainBox);
     }
 
     private void showReports(BorderPane root) {

src/main/java/com/college/management/ChatMessage.java

@@ -0,0 +1,22 @@
+package com.college.management;
+
+import java.time.LocalDateTime;
+
+public class ChatMessage {
+    private String senderName;
+    private int senderId;
+    private String content;
+    private String timestamp;
+
+    public ChatMessage(String senderName, int senderId, String content, String timestamp) {
+        this.senderName = senderName;
+        this.senderId = senderId;
+        this.content = content;
+        this.timestamp = timestamp;
+    }
+
+    public String getSenderName() { return senderName; }
+    public int getSenderId() { return senderId; }
+    public String getContent() { return content; }
+    public String getTimestamp() { return timestamp; }
+}

src/main/java/com/college/management/ChatService.java

@@ -17,9 +17,9 @@ public class ChatService {
         } catch (SQLException e) { e.printStackTrace(); }
     }
 
-    public static List<String> getPrivateConversation(int user1, int user2) {
-        List<String> messages = new ArrayList<>();
-        String sql = "SELECT u.username as sender_name, pm.content, pm.timestamp " +
+    public static List<ChatMessage> getPrivateConversation(int user1, int user2) {
+        List<ChatMessage> messages = new ArrayList<>();
+        String sql = "SELECT u.username as sender_name, pm.sender_id, pm.content, pm.timestamp " +
                      "FROM private_messages pm " +
                      "JOIN users u ON pm.sender_id = u.id " +
                      "WHERE (pm.sender_id = ? AND pm.receiver_id = ?) " +
@@ -33,8 +33,25 @@ public class ChatService {
             pstmt.setInt(4, user1);
             ResultSet rs = pstmt.executeQuery();
             while (rs.next()) {
-                messages.add("[" + rs.getString("timestamp") + "] " + 
-                             rs.getString("sender_name") + ": " + rs.getString("content"));
+                messages.add(new ChatMessage(
+                    rs.getString("sender_name"),
+                    rs.getInt("sender_id"),
+                    rs.getString("content"),
+                    rs.getString("timestamp")
+                ));
+            }
+        } catch (SQLException e) { e.printStackTrace(); }
+        return messages;
+    }
+
+    public static List<ChatMessage> getGlobalMessages() {
+        List<ChatMessage> messages = new ArrayList<>();
+        String sql = "SELECT sender, content, timestamp FROM messages ORDER BY id ASC";
+        try (Connection conn = DatabaseManager.getConnection();
+             Statement stmt = conn.createStatement();
+             ResultSet rs = stmt.executeQuery(sql)) {
+            while (rs.next()) {
+                messages.add(new ChatMessage(rs.getString("sender"), -1, rs.getString("content"), rs.getString("timestamp")));
             }
         } catch (SQLException e) { e.printStackTrace(); }
         return messages;

src/main/java/com/college/management/DatabaseManager.java

@@ -98,6 +98,15 @@ public class DatabaseManager {
                     "FOREIGN KEY(receiver_id) REFERENCES users(id)" +
                     ")");
 
+            // User Settings
+            stmt.execute("CREATE TABLE IF NOT EXISTS user_settings (" +
+                    "user_id INTEGER PRIMARY KEY," +
+                    "theme TEXT DEFAULT 'LIGHT'," +
+                    "bubble_color TEXT DEFAULT '#e1ffc7'," +
+                    "display_name TEXT," +
+                    "FOREIGN KEY(user_id) REFERENCES users(id)" +
+                    ")");
+
             // Insert default admin if not exists
             stmt.execute("INSERT OR IGNORE INTO users (username, password, role) VALUES ('admin', 'admin123', 'ADMIN')");
             

src/main/java/com/college/management/FacultyDashboard.java

@@ -39,19 +39,22 @@ public class FacultyDashboard {
         Button btnEvents = createSidebarButton("Events");
         Button btnChat = createSidebarButton("Global Chat");
         Button btnPrivateChat = createSidebarButton("Private Chat");
+        Button btnSettings = createSidebarButton("Settings");
         Button btnLogout = createSidebarButton("Logout");
 
-        sidebar.getChildren().addAll(brand, new Separator(), btnAttendance, btnMarks, btnTimetable, btnEvents, btnChat, btnPrivateChat, btnLogout);
+        sidebar.getChildren().addAll(brand, new Separator(), btnAttendance, btnMarks, btnTimetable, btnEvents, btnChat, btnPrivateChat, btnSettings, btnLogout);
         root.setLeft(sidebar);
 
+        applyTheme(root);
         showAttendanceManagement(root);
 
         btnAttendance.setOnAction(e -> showAttendanceManagement(root));
         btnMarks.setOnAction(e -> showMarksEntry(root));
         btnTimetable.setOnAction(e -> showTimetable(root));
         btnEvents.setOnAction(e -> showEvents(root));
-        btnChat.setOnAction(e -> AdminDashboard.showChat(root, username));
+        btnChat.setOnAction(e -> AdminDashboard.showChat(root, username, userId));
         btnPrivateChat.setOnAction(e -> root.setCenter(new PrivateChatUI(userId).getView()));
+        btnSettings.setOnAction(e -> root.setCenter(new SettingsUI(userId, () -> applyTheme(root)).getView()));
         btnLogout.setOnAction(e -> new App().start(stage));
 
         Scene scene = new Scene(root, 900, 600);
@@ -59,6 +62,16 @@ public class FacultyDashboard {
         stage.setScene(scene);
     }
 
+    private void applyTheme(BorderPane root) {
+        root.getStylesheets().clear();
+        root.getStylesheets().add(getClass().getResource("/com/college/management/css/chat.css").toExternalForm());
+        UserSettings settings = UserSettings.getSettings(userId);
+        root.getStyleClass().remove("dark-theme");
+        if ("DARK".equals(settings.getTheme())) {
+            root.getStyleClass().add("dark-theme");
+        }
+    }
+
     private void showTimetable(BorderPane root) {
         VBox content = new VBox(15);
         content.setPadding(new Insets(20));

src/main/java/com/college/management/PrivateChatUI.java

@@ -1,6 +1,7 @@
 package com.college.management;
 
 import javafx.geometry.Insets;
+import javafx.geometry.Pos;
 import javafx.scene.control.*;
 import javafx.scene.layout.*;
 import java.util.List;
@@ -8,7 +9,8 @@ import java.util.List;
 public class PrivateChatUI {
     private int currentUserId;
     private User selectedUser;
-    private TextArea chatArea;
+    private VBox messageContainer;
+    private ScrollPane scrollPane;
     private ListView<User> userList;
 
     public PrivateChatUI(int currentUserId) {
@@ -17,13 +19,14 @@ public class PrivateChatUI {
 
     public Pane getView() {
         BorderPane layout = new BorderPane();
-
+        
         // Left side: User List
         VBox leftPane = new VBox(10);
         leftPane.setPadding(new Insets(10));
         leftPane.setPrefWidth(200);
+        leftPane.setStyle("-fx-background-color: #ffffff; -fx-border-color: #dcdcdc; -fx-border-width: 0 1 0 0;");
         Label userLbl = new Label("Contacts");
-        userLbl.setStyle("-fx-font-weight: bold;");
+        userLbl.setStyle("-fx-font-weight: bold; -fx-font-size: 16px;");
         
         userList = new ListView<>();
         refreshUserList();
@@ -41,22 +44,35 @@ public class PrivateChatUI {
         layout.setLeft(leftPane);
 
         // Center: Chat Area
-        VBox chatPane = new VBox(10);
-        chatPane.setPadding(new Insets(10));
+        VBox mainChatPane = new VBox();
         
-        chatArea = new TextArea();
-        chatArea.setEditable(false);
-        chatArea.setPrefHeight(400);
-        chatArea.setWrapText(true);
+        scrollPane = new ScrollPane();
+        messageContainer = new VBox(15);
+        messageContainer.setPadding(new Insets(20));
+        messageContainer.getStyleClass().add("chat-container");
+        messageContainer.setPrefWidth(550);
+        
+        scrollPane.setContent(messageContainer);
+        scrollPane.setFitToWidth(true);
+        scrollPane.setVvalue(1.0);
+        VBox.setVgrow(scrollPane, Priority.ALWAYS);
 
         HBox inputPane = new HBox(10);
+        inputPane.setPadding(new Insets(10));
+        inputPane.setStyle("-fx-background-color: #f0f0f0;");
+        inputPane.setAlignment(Pos.CENTER);
+        
         TextField txtMsg = new TextField();
-        txtMsg.setPrefWidth(400);
+        txtMsg.setPromptText("Type a message...");
+        txtMsg.setPrefWidth(450);
+        txtMsg.setStyle("-fx-background-radius: 20;");
+        
         Button btnSend = new Button("Send");
+        btnSend.setStyle("-fx-background-color: #128c7e; -fx-text-fill: white; -fx-background-radius: 20; -fx-font-weight: bold;");
         inputPane.getChildren().addAll(txtMsg, btnSend);
 
-        chatPane.getChildren().addAll(new Label("Chat Window"), chatArea, inputPane);
-        layout.setCenter(chatPane);
+        mainChatPane.getChildren().addAll(scrollPane, inputPane);
+        layout.setCenter(mainChatPane);
 
         // Logic
         userList.getSelectionModel().selectedItemProperty().addListener((obs, oldVal, newVal) -> {
@@ -81,16 +97,48 @@ public class PrivateChatUI {
     }
 
     private void refreshMessages() {
-        if (selectedUser == null) {
-            chatArea.setText("Select a contact to start chatting.");
-            return;
+        messageContainer.getChildren().clear();
+        if (selectedUser == null) return;
+
+        List<ChatMessage> history = ChatService.getPrivateConversation(currentUserId, selectedUser.getId());
+        for (ChatMessage msg : history) {
+            boolean isMine = msg.getSenderId() == currentUserId;
+            messageContainer.getChildren().add(createBubble(msg, isMine, currentUserId));
         }
-        List<String> history = ChatService.getPrivateConversation(currentUserId, selectedUser.getId());
-        StringBuilder sb = new StringBuilder();
-        for (String msg : history) {
-            sb.append(msg).append("\n");
-        }
-        chatArea.setText(sb.toString());
-        chatArea.setScrollTop(Double.MAX_VALUE);
+        scrollPane.setVvalue(1.0);
     }
-}
+
+    public static VBox createBubble(ChatMessage msg, boolean isMine, int viewerId) {
+        VBox bubbleWrapper = new VBox(2);
+        bubbleWrapper.setMaxWidth(Double.MAX_VALUE);
+        bubbleWrapper.setAlignment(isMine ? Pos.CENTER_RIGHT : Pos.CENTER_LEFT);
+
+        VBox bubble = new VBox(3);
+        bubble.setMaxWidth(350);
+        bubble.getStyleClass().add(isMine ? "chat-bubble-left" : "chat-bubble-right");
+
+        if (isMine) {
+            UserSettings settings = UserSettings.getSettings(viewerId);
+            bubble.setStyle("-fx-bubble-color: " + settings.getBubbleColor() + ";");
+        } else {
+            bubble.setStyle("-fx-bubble-color: #ffffff;");
+        }
+
+        if (!isMine) {
+            Label sender = new Label(msg.getSenderName());
+            sender.getStyleClass().add("chat-sender");
+            bubble.getChildren().add(sender);
+        }
+
+        Label content = new Label(msg.getContent());
+        content.setWrapText(true);
+        
+        Label time = new Label(msg.getTimestamp());
+        time.getStyleClass().add("chat-time");
+        
+        bubble.getChildren().addAll(content, time);
+        bubbleWrapper.getChildren().add(bubble);
+        
+        return bubbleWrapper;
+    }
+}

src/main/java/com/college/management/SettingsUI.java

@@ -0,0 +1,70 @@
+package com.college.management;
+
+import javafx.geometry.Insets;
+import javafx.scene.control.*;
+import javafx.scene.layout.*;
+import javafx.scene.paint.Color;
+
+public class SettingsUI {
+    private int userId;
+    private UserSettings settings;
+    private Runnable onSaveCallback;
+
+    public SettingsUI(int userId, Runnable onSaveCallback) {
+        this.userId = userId;
+        this.settings = UserSettings.getSettings(userId);
+        this.onSaveCallback = onSaveCallback;
+    }
+
+    public Pane getView() {
+        VBox layout = new VBox(20);
+        layout.setPadding(new Insets(20));
+
+        Label title = new Label("User Settings");
+        title.setStyle("-fx-font-size: 24px; -fx-font-weight: bold;");
+
+        // Display Name
+        HBox nameBox = new HBox(10);
+        Label nameLbl = new Label("Display Name:");
+        TextField txtName = new TextField(settings.getDisplayName() == null ? "" : settings.getDisplayName());
+        nameBox.getChildren().addAll(nameLbl, txtName);
+
+        // Theme Toggle
+        HBox themeBox = new HBox(10);
+        Label themeLbl = new Label("Theme:");
+        ToggleButton themeBtn = new ToggleButton(settings.getTheme().equals("DARK") ? "Dark Mode" : "Light Mode");
+        themeBtn.setSelected(settings.getTheme().equals("DARK"));
+        themeBtn.setOnAction(e -> {
+            themeBtn.setText(themeBtn.isSelected() ? "Dark Mode" : "Light Mode");
+        });
+        themeBox.getChildren().addAll(themeLbl, themeBtn);
+
+        // Bubble Color
+        HBox colorBox = new HBox(10);
+        Label colorLbl = new Label("My Chat Bubble Color:");
+        ColorPicker colorPicker = new ColorPicker(Color.web(settings.getBubbleColor()));
+        colorBox.getChildren().addAll(colorLbl, colorPicker);
+
+        Button btnSave = new Button("Save Settings");
+        btnSave.setStyle("-fx-background-color: #128c7e; -fx-text-fill: white; -fx-font-weight: bold;");
+
+        btnSave.setOnAction(e -> {
+            settings.setDisplayName(txtName.getText().isEmpty() ? null : txtName.getText());
+            settings.setTheme(themeBtn.isSelected() ? "DARK" : "LIGHT");
+            settings.setBubbleColor(toHexString(colorPicker.getValue()));
+            settings.save();
+            if (onSaveCallback != null) onSaveCallback.run();
+            new Alert(Alert.AlertType.INFORMATION, "Settings Saved!").show();
+        });
+
+        layout.getChildren().addAll(title, nameBox, themeBox, colorBox, btnSave);
+        return layout;
+    }
+
+    private String toHexString(Color color) {
+        return String.format("#%02X%02X%02X",
+                (int) (color.getRed() * 255),
+                (int) (color.getGreen() * 255),
+                (int) (color.getBlue() * 255));
+    }
+}

src/main/java/com/college/management/StudentDashboard.java

@@ -41,20 +41,23 @@ public class StudentDashboard {
         Button btnChat = createSidebarButton("Global Chat");
         Button btnPrivateChat = createSidebarButton("Private Chat");
         Button btnNotices = createSidebarButton("Notices");
+        Button btnSettings = createSidebarButton("Settings");
         Button btnLogout = createSidebarButton("Logout");
 
-        sidebar.getChildren().addAll(brand, nameLbl, new Separator(), btnMarks, btnAttendance, btnTimetable, btnEvents, btnChat, btnPrivateChat, btnNotices, btnLogout);
+        sidebar.getChildren().addAll(brand, nameLbl, new Separator(), btnMarks, btnAttendance, btnTimetable, btnEvents, btnChat, btnPrivateChat, btnNotices, btnSettings, btnLogout);
         root.setLeft(sidebar);
 
+        applyTheme(root);
         showMarks(root);
 
         btnMarks.setOnAction(e -> showMarks(root));
         btnAttendance.setOnAction(e -> showAttendance(root));
         btnTimetable.setOnAction(e -> showTimetable(root));
         btnEvents.setOnAction(e -> showEvents(root));
-        btnChat.setOnAction(e -> AdminDashboard.showChat(root, studentName));
+        btnChat.setOnAction(e -> AdminDashboard.showChat(root, studentName, studentId));
         btnPrivateChat.setOnAction(e -> root.setCenter(new PrivateChatUI(studentId).getView()));
         btnNotices.setOnAction(e -> showNotices(root));
+        btnSettings.setOnAction(e -> root.setCenter(new SettingsUI(studentId, () -> applyTheme(root)).getView()));
         btnLogout.setOnAction(e -> new App().start(stage));
 
         Scene scene = new Scene(root, 900, 600);
@@ -62,6 +65,16 @@ public class StudentDashboard {
         stage.setScene(scene);
     }
 
+    private void applyTheme(BorderPane root) {
+        root.getStylesheets().clear();
+        root.getStylesheets().add(getClass().getResource("/com/college/management/css/chat.css").toExternalForm());
+        UserSettings settings = UserSettings.getSettings(studentId);
+        root.getStyleClass().remove("dark-theme");
+        if ("DARK".equals(settings.getTheme())) {
+            root.getStyleClass().add("dark-theme");
+        }
+    }
+
     private void showTimetable(BorderPane root) {
         VBox content = new VBox(15);
         content.setPadding(new Insets(20));

src/main/java/com/college/management/UserSettings.java

@@ -0,0 +1,57 @@
+package com.college.management;
+
+import java.sql.*;
+
+public class UserSettings {
+    private int userId;
+    private String theme;
+    private String bubbleColor;
+    private String displayName;
+
+    public UserSettings(int userId, String theme, String bubbleColor, String displayName) {
+        this.userId = userId;
+        this.theme = theme;
+        this.bubbleColor = bubbleColor;
+        this.displayName = displayName;
+    }
+
+    public static UserSettings getSettings(int userId) {
+        try (Connection conn = DatabaseManager.getConnection();
+             PreparedStatement pstmt = conn.prepareStatement("SELECT * FROM user_settings WHERE user_id = ?")) {
+            pstmt.setInt(1, userId);
+            ResultSet rs = pstmt.executeQuery();
+            if (rs.next()) {
+                return new UserSettings(userId, rs.getString("theme"), rs.getString("bubble_color"), rs.getString("display_name"));
+            } else {
+                // Default settings
+                return new UserSettings(userId, "LIGHT", "#e1ffc7", null);
+            }
+        } catch (SQLException e) {
+            e.printStackTrace();
+            return new UserSettings(userId, "LIGHT", "#e1ffc7", null);
+        }
+    }
+
+    public void save() {
+        try (Connection conn = DatabaseManager.getConnection();
+             PreparedStatement pstmt = conn.prepareStatement(
+                     "INSERT INTO user_settings (user_id, theme, bubble_color, display_name) VALUES (?, ?, ?, ?) " +
+                     "ON CONFLICT(user_id) DO UPDATE SET theme=excluded.theme, bubble_color=excluded.bubble_color, display_name=excluded.display_name")) {
+            pstmt.setInt(1, userId);
+            pstmt.setString(2, theme);
+            pstmt.setString(3, bubbleColor);
+            pstmt.setString(4, displayName);
+            pstmt.executeUpdate();
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+    }
+
+    // Getters and Setters
+    public String getTheme() { return theme; }
+    public void setTheme(String theme) { this.theme = theme; }
+    public String getBubbleColor() { return bubbleColor; }
+    public void setBubbleColor(String bubbleColor) { this.bubbleColor = bubbleColor; }
+    public String getDisplayName() { return displayName; }
+    public void setDisplayName(String displayName) { this.displayName = displayName; }
+}

src/main/resources/com/college/management/css/chat.css

@@ -0,0 +1,133 @@
+/* Global Defaults */
+.root {
+    -fx-font-family: "Segoe UI", Helvetica, Arial, sans-serif;
+}
+
+/* Base Light Theme */
+.root {
+    -fx-base-color: #f4f4f4;
+    -fx-control-inner-background: #ffffff;
+    -fx-background-color: #f4f4f4;
+}
+
+/* Chat Bubbles */
+.chat-bubble-left {
+    -fx-background-color: -fx-bubble-color;
+    -fx-background-radius: 15 15 15 0;
+    -fx-padding: 10;
+}
+
+.chat-bubble-right {
+    -fx-background-color: #ffffff;
+    -fx-background-radius: 15 15 0 15;
+    -fx-padding: 10;
+    -fx-border-color: #dcdcdc;
+    -fx-border-width: 1;
+    -fx-border-radius: 15 15 0 15;
+}
+
+.chat-container {
+    -fx-background-color: transparent;
+}
+
+/* DARK THEME - GLOBAL OVERRIDES */
+.dark-theme {
+    -fx-base-color: #1e1e1e;
+    -fx-background-color: #1e1e1e;
+    -fx-control-inner-background: #2d2d2d;
+    -fx-accent: #0078d4;
+    -fx-focus-color: #0078d4;
+}
+
+.dark-theme .label {
+    -fx-text-fill: #e0e0e0;
+}
+
+/* Sidebar Specific for Dark Theme */
+.dark-theme .vbox {
+    /* If it's a sidebar, we might want it slightly different */
+}
+
+/* Buttons in Dark Theme */
+.dark-theme .button {
+    -fx-background-color: #333333;
+    -fx-text-fill: #e0e0e0;
+    -fx-border-color: #444444;
+}
+.dark-theme .button:hover {
+    -fx-background-color: #444444;
+}
+
+/* Inputs in Dark Theme */
+.dark-theme .text-field, .dark-theme .text-area, .dark-theme .password-field {
+    -fx-background-color: #3c3c3c;
+    -fx-text-fill: white;
+    -fx-prompt-text-fill: #888888;
+    -fx-border-color: #555555;
+}
+
+/* Tables in Dark Theme */
+.dark-theme .table-view {
+    -fx-background-color: #2d2d2d;
+    -fx-border-color: #444444;
+}
+.dark-theme .table-view .column-header, .dark-theme .table-view .filler {
+    -fx-background-color: #3c3c3c;
+}
+.dark-theme .table-view .column-header .label {
+    -fx-text-fill: #ffffff;
+}
+.dark-theme .table-row-cell {
+    -fx-background-color: #2d2d2d;
+    -fx-text-fill: #e0e0e0;
+}
+.dark-theme .table-row-cell:odd {
+    -fx-background-color: #333333;
+}
+.dark-theme .table-row-cell:selected {
+    -fx-background-color: #0078d4;
+}
+
+/* Lists in Dark Theme */
+.dark-theme .list-view {
+    -fx-background-color: #2d2d2d;
+    -fx-border-color: #444444;
+}
+.dark-theme .list-cell {
+    -fx-background-color: #2d2d2d;
+    -fx-text-fill: #e0e0e0;
+}
+.dark-theme .list-cell:selected {
+    -fx-background-color: #0078d4;
+}
+
+/* ScrollPane and ScrollBar */
+.dark-theme .scroll-pane {
+    -fx-background-color: #1e1e1e;
+}
+.dark-theme .scroll-pane > .viewport {
+    -fx-background-color: #1e1e1e;
+}
+
+/* Separators */
+.dark-theme .separator .line {
+    -fx-border-color: #444444;
+}
+
+/* Chat bubble text in Dark Theme */
+.dark-theme .chat-bubble-right {
+    -fx-background-color: #3c3c3c;
+    -fx-border-color: #555555;
+    -fx-text-fill: white;
+}
+.dark-theme .chat-bubble-right .label {
+    -fx-text-fill: white;
+}
+
+.dark-theme .chat-bubble-left .label {
+    -fx-text-fill: black; /* Keep left bubble readable as it's usually light green */
+}
+
+.dark-theme .chat-time {
+    -fx-text-fill: #aaaaaa;
+}

target/classes/com/college/management/css/chat.css

@@ -0,0 +1,133 @@
+/* Global Defaults */
+.root {
+    -fx-font-family: "Segoe UI", Helvetica, Arial, sans-serif;
+}
+
+/* Base Light Theme */
+.root {
+    -fx-base-color: #f4f4f4;
+    -fx-control-inner-background: #ffffff;
+    -fx-background-color: #f4f4f4;
+}
+
+/* Chat Bubbles */
+.chat-bubble-left {
+    -fx-background-color: -fx-bubble-color;
+    -fx-background-radius: 15 15 15 0;
+    -fx-padding: 10;
+}
+
+.chat-bubble-right {
+    -fx-background-color: #ffffff;
+    -fx-background-radius: 15 15 0 15;
+    -fx-padding: 10;
+    -fx-border-color: #dcdcdc;
+    -fx-border-width: 1;
+    -fx-border-radius: 15 15 0 15;
+}
+
+.chat-container {
+    -fx-background-color: transparent;
+}
+
+/* DARK THEME - GLOBAL OVERRIDES */
+.dark-theme {
+    -fx-base-color: #1e1e1e;
+    -fx-background-color: #1e1e1e;
+    -fx-control-inner-background: #2d2d2d;
+    -fx-accent: #0078d4;
+    -fx-focus-color: #0078d4;
+}
+
+.dark-theme .label {
+    -fx-text-fill: #e0e0e0;
+}
+
+/* Sidebar Specific for Dark Theme */
+.dark-theme .vbox {
+    /* If it's a sidebar, we might want it slightly different */
+}
+
+/* Buttons in Dark Theme */
+.dark-theme .button {
+    -fx-background-color: #333333;
+    -fx-text-fill: #e0e0e0;
+    -fx-border-color: #444444;
+}
+.dark-theme .button:hover {
+    -fx-background-color: #444444;
+}
+
+/* Inputs in Dark Theme */
+.dark-theme .text-field, .dark-theme .text-area, .dark-theme .password-field {
+    -fx-background-color: #3c3c3c;
+    -fx-text-fill: white;
+    -fx-prompt-text-fill: #888888;
+    -fx-border-color: #555555;
+}
+
+/* Tables in Dark Theme */
+.dark-theme .table-view {
+    -fx-background-color: #2d2d2d;
+    -fx-border-color: #444444;
+}
+.dark-theme .table-view .column-header, .dark-theme .table-view .filler {
+    -fx-background-color: #3c3c3c;
+}
+.dark-theme .table-view .column-header .label {
+    -fx-text-fill: #ffffff;
+}
+.dark-theme .table-row-cell {
+    -fx-background-color: #2d2d2d;
+    -fx-text-fill: #e0e0e0;
+}
+.dark-theme .table-row-cell:odd {
+    -fx-background-color: #333333;
+}
+.dark-theme .table-row-cell:selected {
+    -fx-background-color: #0078d4;
+}
+
+/* Lists in Dark Theme */
+.dark-theme .list-view {
+    -fx-background-color: #2d2d2d;
+    -fx-border-color: #444444;
+}
+.dark-theme .list-cell {
+    -fx-background-color: #2d2d2d;
+    -fx-text-fill: #e0e0e0;
+}
+.dark-theme .list-cell:selected {
+    -fx-background-color: #0078d4;
+}
+
+/* ScrollPane and ScrollBar */
+.dark-theme .scroll-pane {
+    -fx-background-color: #1e1e1e;
+}
+.dark-theme .scroll-pane > .viewport {
+    -fx-background-color: #1e1e1e;
+}
+
+/* Separators */
+.dark-theme .separator .line {
+    -fx-border-color: #444444;
+}
+
+/* Chat bubble text in Dark Theme */
+.dark-theme .chat-bubble-right {
+    -fx-background-color: #3c3c3c;
+    -fx-border-color: #555555;
+    -fx-text-fill: white;
+}
+.dark-theme .chat-bubble-right .label {
+    -fx-text-fill: white;
+}
+
+.dark-theme .chat-bubble-left .label {
+    -fx-text-fill: black; /* Keep left bubble readable as it's usually light green */
+}
+
+.dark-theme .chat-time {
+    -fx-text-fill: #aaaaaa;
+}

target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst

@@ -2,7 +2,9 @@ com/college/management/StudentDashboard.class
 com/college/management/FacultyDashboard.class
 com/college/management/ReportGenerator.class
 com/college/management/PrivateChatUI.class
+com/college/management/SettingsUI.class
 com/college/management/DatabaseManager.class
+com/college/management/UserSettings.class
 com/college/management/AdminDashboard$TableValue.class
 com/college/management/App.class
 com/college/management/PrivateChatUI$1.class
@@ -10,4 +12,5 @@ com/college/management/ChatService.class
 com/college/management/User.class
 com/college/management/FacultyDashboard$TimetableEntry.class
 com/college/management/StudentDashboard$MarkRecord.class
+com/college/management/ChatMessage.class
 com/college/management/AdminDashboard.class

target/maven-status/maven-compiler-plugin/compile/default-compile/inputFiles.lst

@@ -1,8 +1,11 @@
 /home/balraj/Work/Smart College Management System/src/main/java/com/college/management/DatabaseManager.java
+/home/balraj/Work/Smart College Management System/src/main/java/com/college/management/SettingsUI.java
+/home/balraj/Work/Smart College Management System/src/main/java/com/college/management/ChatMessage.java
 /home/balraj/Work/Smart College Management System/src/main/java/com/college/management/App.java
 /home/balraj/Work/Smart College Management System/src/main/java/com/college/management/ChatService.java
 /home/balraj/Work/Smart College Management System/src/main/java/com/college/management/ReportGenerator.java
 /home/balraj/Work/Smart College Management System/src/main/java/com/college/management/PrivateChatUI.java
+/home/balraj/Work/Smart College Management System/src/main/java/com/college/management/UserSettings.java
 /home/balraj/Work/Smart College Management System/src/main/java/com/college/management/AdminDashboard.java
 /home/balraj/Work/Smart College Management System/src/main/java/com/college/management/FacultyDashboard.java
 /home/balraj/Work/Smart College Management System/src/main/java/com/college/management/StudentDashboard.java