Style: Add thin border to dialog window

CityDoctorParent/Extensions/CityDoctorGUI/src/main/java/de/hft/stuttgart/citydoctor2/gui/IndeterminateSpinnerDialog.java

@@ -14,7 +14,6 @@ import java.io.IOException;
 
 public class IndeterminateSpinnerDialog {
 
-
     private Stage stage;
 
     @FXML

CityDoctorParent/Extensions/CityDoctorGUI/src/main/resources/de/hft/stuttgart/citydoctor2/gui/IndeterminateSpinnerDialog.fxml

@@ -6,7 +6,7 @@
 <?import javafx.scene.layout.VBox?>
 <?import javafx.scene.text.Font?>
 
-<VBox alignment="CENTER" maxHeight="-Infinity" maxWidth="-Infinity" spacing="10.0" xmlns="http://javafx.com/javafx/22" xmlns:fx="http://javafx.com/fxml/1">
+<VBox alignment="CENTER" maxHeight="-Infinity" maxWidth="-Infinity" minWidth="300.0" spacing="10.0" style="-fx-border-image-width: 2; -fx-border-color: BLACK;" xmlns="http://javafx.com/javafx/22" xmlns:fx="http://javafx.com/fxml/1">
    <children>
       <Label fx:id="messageLbl" text="Message">
          <font>