MainWindow.fxml

<?xml version="1.0" encoding="UTF-8"?>

<?import java.net.URL?>
<?import javafx.geometry.Insets?>
<?import javafx.scene.Scene?>
<?import javafx.scene.control.Button?>
<?import javafx.scene.control.Label?>
<?import javafx.scene.image.Image?>
<?import javafx.scene.layout.HBox?>
<?import javafx.scene.layout.Pane?>
<?import javafx.scene.layout.StackPane?>
<?import javafx.scene.layout.VBox?>
<?import javafx.stage.Stage?>

<fx:root minWidth="1200.0" onCloseRequest="#handleExit" title="Swift+" type="javafx.stage.Stage" xmlns="http://javafx.com/javafx/11" xmlns:fx="http://javafx.com/fxml/1">
  <icons>
    <Image url="@/images/swift.png" />
  </icons>
  <scene>
    <Scene>
      <stylesheets>
        <URL value="@DarkTheme.css" />
        <URL value="@Extensions.css" />
      </stylesheets>

      <VBox prefHeight="66.0" prefWidth="1200.0">
        <HBox styleClass="menu-bar">
          <Button fx:id="contactsButton" mnemonicParsing="false" onAction="#showContactTab" text="CONTACTS" />
          <Button fx:id="tasksButton" mnemonicParsing="false" onAction="#showTaskTab" text="TASKS" />
          <Button fx:id="helpButton" mnemonicParsing="false" onAction="#handleHelp" text="HELP" />
          <Button fx:id="exitButton" mnemonicParsing="false" onAction="#handleExit" text="EXIT" />
        </HBox>

        <StackPane fx:id="commandBoxPlaceholder" styleClass="pane-with-border" VBox.vgrow="NEVER">
          <padding>
            <Insets bottom="10.0" left="25.0" right="25.0" top="10.0" />
          </padding>
        </StackPane>

        <VBox VBox.vgrow="ALWAYS">
          <HBox VBox.vgrow="ALWAYS">
            <HBox minWidth="850.0" prefHeight="22.0" HBox.hgrow="ALWAYS" VBox.vgrow="ALWAYS">
                <VBox fx:id="list" prefHeight="22.0" styleClass="pane-with-border" HBox.hgrow="ALWAYS" VBox.vgrow="ALWAYS">
                  <padding>
                    <Insets bottom="10" left="10" right="10" top="10" />
                  </padding>
                  <StackPane fx:id="listPanelPlaceholder" minWidth="600.0" HBox.hgrow="ALWAYS" VBox.vgrow="ALWAYS">
                           <padding>
                              <Insets left="14.0" right="15.0" />
                           </padding></StackPane>
                </VBox>
            </HBox>

                  <HBox minWidth="300.0" prefHeight="22.0" prefWidth="282.0" HBox.hgrow="ALWAYS" VBox.vgrow="ALWAYS">
              <VBox style="-fx-background-color: #FAFAFA;" styleClass="right-panel-vbox" HBox.hgrow="ALWAYS" VBox.vgrow="ALWAYS">
                        <Pane minHeight="25.0" prefHeight="25.0" prefWidth="400.0" styleClass="result-display-pane">
                           <children>
                              <Label prefHeight="25.0" styleClass="result_heading" text="COMMAND RESULTS">
                                 <padding>
                                    <Insets left="12.0" top="10.0" />
                                 </padding>
                                 <opaqueInsets>
                                    <Insets />
                                 </opaqueInsets>
                              </Label>
                           </children>
                        </Pane>
                <StackPane fx:id="resultDisplayPlaceholder" styleClass="right-pane-with-border" VBox.vgrow="ALWAYS">
                  <padding>
                    <Insets bottom="5.0" left="10.0" right="25.0" top="5.0" />
                  </padding>
                </StackPane>

                <StackPane fx:id="personTaskListPanelPlaceholder" styleClass="pane-with-border" VBox.vgrow="ALWAYS">
                  <padding>
                    <Insets bottom="5.0" left="10.0" right="25.0" top="5.0" />
                  </padding>
                </StackPane>
              </VBox>
            </HBox>
          </HBox>
        </VBox>

        <StackPane fx:id="statusbarPlaceholder" VBox.vgrow="NEVER" />
      </VBox>

    </Scene>
  </scene>
</fx:root>