diff --git a/out/production/GUITestJavaFX/sample/Controller.class b/out/production/GUITestJavaFX/sample/Controller.class
deleted file mode 100644
index fc40046..0000000
Binary files a/out/production/GUITestJavaFX/sample/Controller.class and /dev/null differ
diff --git a/out/production/GUITestJavaFX/sample/Main.class b/out/production/GUITestJavaFX/sample/Main.class
deleted file mode 100644
index afea2ec..0000000
Binary files a/out/production/GUITestJavaFX/sample/Main.class and /dev/null differ
diff --git a/out/production/GUITestJavaFX/sample/sample.css b/out/production/GUITestJavaFX/sample/sample.css
deleted file mode 100644
index a85d89c..0000000
--- a/out/production/GUITestJavaFX/sample/sample.css
+++ /dev/null
@@ -1,7 +0,0 @@
-.root {
-    -fx-background-color: #AAAABA;
-}
-
-.label {
-    -fx-font-size: 25;
-}
\ No newline at end of file
diff --git a/out/production/GUITestJavaFX/sample/sample.fxml b/out/production/GUITestJavaFX/sample/sample.fxml
deleted file mode 100644
index 9d4caee..0000000
--- a/out/production/GUITestJavaFX/sample/sample.fxml
+++ /dev/null
@@ -1,17 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-
-<?import javafx.scene.control.*?>
-<?import javafx.scene.image.*?>
-<?import javafx.scene.layout.*?>
-
-<GridPane alignment="center" hgap="10.0" prefHeight="143.0" prefWidth="107.0" stylesheets="/sample/sample.css" vgap="10" xmlns="http://javafx.com/javafx/11.0.1" xmlns:fx="http://javafx.com/fxml/1" fx:controller="sample.Controller">
-    <Button onAction="#showImage" prefHeight="25.0" prefWidth="110.0" text="Start" GridPane.rowIndex="1" />
-   <ImageView fx:id="setPreview" fitWidth="1000" preserveRatio="true" />
-   <columnConstraints>
-      <ColumnConstraints />
-   </columnConstraints>
-   <rowConstraints>
-      <RowConstraints />
-      <RowConstraints />
-   </rowConstraints>
-</GridPane>
diff --git a/src/mandelbrotCalculator/CalculationThread.java b/src/mandelbrotCalculator/CalculationThread.java
index 0ce1332..ea9163d 100644
--- a/src/mandelbrotCalculator/CalculationThread.java
+++ b/src/mandelbrotCalculator/CalculationThread.java
@@ -29,7 +29,6 @@ public class CalculationThread extends Thread {
             long startTime = System.currentTimeMillis();
 
             BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
-            File f = null;
 
             for (int i = 0; i < width; i++) {
                 for (int j = 0; j < height; j++) {
@@ -109,14 +108,18 @@ public class CalculationThread extends Thread {
         }
     }
 
+    /**
+     * Checks wheter the number is in the Mandelbrot set
+     * @param number The Complex Number to be checked
+     * @param iterations The amount of iterations the program should do
+     * @param threshold The threshold for a number not being in the set
+     * @return -1 if the number is in the set, else it returns the amount of interations before it reached the threshold
+     */
     int checkMandelbrot(CNumber number, int iterations, double threshold) {
-        //returns -1 if the number is in the set, returns the number of iterations before it reached the threshold if it is not in the set
 
-        // start
         CNumber n = new CNumber();
         int reached = -1;
 
-        // first
         n = CNumber.add(n, number);
 
         for (int i = 0; i < iterations; i++) {
@@ -131,7 +134,6 @@ public class CalculationThread extends Thread {
     }
 
     public int getColorAsInt(int a, int r, int g, int b) {
-
         return (a << 24) | (r << 16) | (g << 8) | b;
     }
 
diff --git a/src/mandelbrotCalculator/MandelbrotSet.java b/src/mandelbrotCalculator/MandelbrotSet.java
index 6514004..fb0886d 100644
--- a/src/mandelbrotCalculator/MandelbrotSet.java
+++ b/src/mandelbrotCalculator/MandelbrotSet.java
@@ -20,7 +20,7 @@ public class MandelbrotSet {
     private double pointY = 0;
     private double zoom = 1;
     private int width = 1920;
-    private int threshold = 100;
+    private int threshold = 1000;
     private float ratio = 2 / 3f;
     private int threadAmount = 10;
 
diff --git a/src/ui/Controller.java b/src/ui/Controller.java
index 66951b0..393b9c9 100644
--- a/src/ui/Controller.java
+++ b/src/ui/Controller.java
@@ -24,7 +24,7 @@ public class Controller {
     }
 
     public void startCalculation(ActionEvent actionEvent) {
-        MandelbrotSet m = new MandelbrotSet(2, 1, 3, 1);
+        MandelbrotSet m = new MandelbrotSet(2, 3, 3, 10);
         m.startMandelbrot();
     }
 }