switched to SceneBuilder setup for further development.

src/main/java/no/ntnu/idatt1002/demo/MyApp.java

 package no.ntnu.idatt1002.demo;
 
-import no.ntnu.idatt1002.demo.view.MyWindow;
+import javafx.application.Application;
+import javafx.fxml.FXMLLoader;
+import javafx.stage.Stage;
+import javafx.scene.Parent;
+import javafx.scene.Scene;
 
-/**
- * Use this class to start the application
- * @author nilstes
- */
-public class MyApp {
+import java.util.Objects;
 
-    static StartMenu menu = new StartMenu();
+public class MyApp extends Application {
 
-    /**
-     * Main method for my application
-     */
-    public static void main(String[] args) throws Exception {
-        menu.start();
-   }  
-}
+    @Override
+    public void start(Stage stage) {
+        try {
+
+            Parent root = FXMLLoader.load(Objects.requireNonNull(getClass().getResource("FirstMenu.fxml")));
+            Scene scene = new Scene(root);
+            stage.setScene(scene);
+            stage.show();
+
+        } catch(Exception e) {
+            e.printStackTrace();
+        }
+    }
+    public static void main(String[] args) {
+        launch(args);
+    }
+}
\ No newline at end of file

src/main/java/no/ntnu/idatt1002/demo/StartMenu.java

-package no.ntnu.idatt1002.demo;
-
-import javafx.application.Application;
-import javafx.geometry.Insets;
-import javafx.geometry.Pos;
-import javafx.scene.Scene;
-import javafx.scene.control.Button;
-import javafx.scene.image.Image;
-import javafx.scene.image.ImageView;
-import javafx.scene.layout.*;
-import javafx.scene.text.*;
-import javafx.stage.Stage;
-import java.io.FileInputStream;
-import java.io.IOException;
-
-
-public class StartMenu extends Application{
-
-    @Override
-    public void start(Stage primaryStage) throws IOException {
-        primaryStage.setTitle("BudgetBuddy");
-        ImageView bck = new ImageView(new Image(new FileInputStream("src/main/resources/Defaults/budgetbuddycover.jpeg")));
-        bck.setPreserveRatio(true);
-        bck.setFitWidth(750);
-
-
-        StackPane pane = new StackPane();
-        HBox buttons = new HBox();
-        VBox layout = new VBox();
-        Button opt1 = new Button("Start New Budget");
-        Button opt2 = new Button("Continue Ongoing Budget");
-        opt1.setPadding(new Insets(20,100,20,100));
-        opt2.setPadding(new Insets(20,100,20,100));
-        buttons.getChildren().addAll(opt1, opt2);
-        buttons.setAlignment(Pos.CENTER);
-        buttons.setSpacing(75);
-
-        Text text = new Text();
-        String textContent = "BudgetBuddy";
-        text.setText(textContent);
-        text.setFont(Font.font("verdana", FontWeight.BOLD, FontPosture.REGULAR, 60));
-
-
-        layout.getChildren().addAll(text, buttons);
-        layout.setAlignment(Pos.CENTER);
-        layout.setSpacing(100);
-
-        pane.getChildren().addAll(bck, layout);
-        Scene scene = new Scene(pane);
-        primaryStage.setScene(scene);
-
-        primaryStage.setResizable(false);
-        primaryStage.show();
-    }
-
-    public void start() {
-        start();
-    }
-}
-

src/main/java/no/ntnu/idatt1002/demo/sceneController.java

+package no.ntnu.idatt1002.demo;
+
+import java.io.IOException;
+
+import javafx.event.ActionEvent;
+import javafx.fxml.FXMLLoader;
+import javafx.scene.Node;
+import javafx.scene.Parent;
+import javafx.scene.Scene;
+import javafx.stage.Stage;
+
+public class sceneController {
+
+    private Stage stage;
+    private Scene scene;
+    private Parent root;
+
+    public void switchStartMenu(ActionEvent event) throws IOException {
+        root = FXMLLoader.load(getClass().getResource("view/StartMenu.fxml"));
+        stage = (Stage)((Node)event.getSource()).getScene().getWindow();
+        scene = new Scene(root);
+        stage.setScene(scene);
+        stage.show();
+    }
+
+    public void switchNewBudget(ActionEvent event) throws IOException {
+        root = FXMLLoader.load(getClass().getResource("view/NewBudget.fxml"));
+        stage = (Stage)((Node)event.getSource()).getScene().getWindow();
+        scene = new Scene(root);
+        stage.setScene(scene);
+        stage.show();
+    }
+}
\ No newline at end of file

src/main/java/no/ntnu/idatt1002/demo/view/NewBudget.fxml

+<?xml version="1.0" encoding="UTF-8"?>
+
+<?import java.lang.*?>
+<?import java.util.*?>
+<?import javafx.scene.*?>
+<?import javafx.scene.control.*?>
+<?import javafx.scene.layout.*?>
+
+<AnchorPane xmlns="http://javafx.com/javafx"
+            xmlns:fx="http://javafx.com/fxml"
+            fx:controller="no.ntnu.idatt1002.demo.view.NewBudget"
+            prefHeight="400.0" prefWidth="600.0">
+
+</AnchorPane>

src/main/java/no/ntnu/idatt1002/demo/view/NewBudget.java

+package no.ntnu.idatt1002.demo.view;
+
+import javafx.geometry.Insets;
+import javafx.geometry.Pos;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.control.Label;
+import javafx.scene.control.TextArea;
+import javafx.scene.image.Image;
+import javafx.scene.image.ImageView;
+import javafx.scene.layout.HBox;
+import javafx.scene.layout.Pane;
+import javafx.scene.layout.StackPane;
+import javafx.scene.layout.VBox;
+import javafx.scene.text.Font;
+import javafx.scene.text.FontPosture;
+import javafx.scene.text.FontWeight;
+import javafx.stage.Stage;
+
+import java.io.FileInputStream;
+import java.io.IOException;
+
+public class NewBudget {
+
+    private static StackPane root;
+    public static Pane getRoot() throws IOException {
+
+        TextArea income = new TextArea();
+        TextArea income2 = new TextArea();
+        income.setMaxSize(200, 20);
+        income2.setMaxSize(200, 20);
+        VBox inputs = new VBox();
+        inputs.getChildren().addAll(income, income2);
+        inputs.setAlignment(Pos.CENTER);
+        inputs.setSpacing(100);
+
+
+        return root;
+    }
+
+}
+

src/main/resources/CSS/outline.css

+.label {
+    -fx-font-size: 60px;
+}
+
+.outline.label .text {
+    -fx-fill: white;
+    -fx-stroke: black;
+    -fx-stroke-width: 2px;
+}
\ No newline at end of file

src/main/resources/Windows/FirstMenu.fxml

+<?xml version="1.0" encoding="UTF-8"?>
+
+<?import javafx.scene.control.Button?>
+<?import javafx.scene.control.Label?>
+<?import javafx.scene.image.Image?>
+<?import javafx.scene.image.ImageView?>
+<?import javafx.scene.layout.AnchorPane?>
+<?import javafx.scene.text.Font?>
+
+<AnchorPane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="400.0" prefWidth="600.0" xmlns="http://javafx.com/javafx/19" xmlns:fx="http://javafx.com/fxml/1" fx:controller="no.ntnu.idatt1002.demo.sceneController">
+   <children>
+      <ImageView fitHeight="412.0" fitWidth="614.0" layoutX="-7.0" layoutY="-6.0" pickOnBounds="true" smooth="false">
+         <image>
+            <Image url="@../Defaults/backgroundMini.jpg" />
+         </image>
+      </ImageView>
+      <Label alignment="CENTER" contentDisplay="CENTER" layoutX="73.0" layoutY="113.0" lineSpacing="1.0" text="Welcome to BudgetBuddy!" textAlignment="CENTER" textOverrun="LEADING_ELLIPSIS" wrapText="true">
+         <font>
+            <Font name="Verdana" size="34.0" />
+         </font>
+      </Label>
+      <Label ellipsisString="" layoutX="147.0" layoutY="171.0" lineSpacing="1.0" text="Please choose one of the options:" textAlignment="CENTER">
+         <font>
+            <Font name="Verdana" size="18.0" />
+         </font>
+      </Label>
+      <Button layoutX="69.0" layoutY="212.0" mnemonicParsing="false" text="New Budget">
+         <font>
+            <Font size="24.0" />
+         </font>
+      </Button>
+      <Button layoutX="380.0" layoutY="212.0" mnemonicParsing="false" text="Old Budget">
+         <font>
+            <Font size="24.0" />
+         </font>
+      </Button>
+   </children>
+</AnchorPane>