Some modifications in update method related to firefighter

build/resources/main/view/DarkTheme.css

+.background {
+    -fx-background-color: #1d1d1d;
+}
+
+.label {
+    -fx-font-size: 11pt;
+    -fx-font-family: "Segoe UI Semibold";
+    -fx-text-fill: white;
+    -fx-opacity: 0.6;
+}
+
+.label-bright {
+    -fx-font-size: 11pt;
+    -fx-font-family: "Segoe UI Semibold";
+    -fx-text-fill: white;
+    -fx-opacity: 1;
+}
+
+.label-header {
+    -fx-font-size: 32pt;
+    -fx-font-family: "Segoe UI Light";
+    -fx-text-fill: white;
+    -fx-opacity: 1;
+}
+
+.table-view {
+    -fx-base: #1d1d1d;
+    -fx-control-inner-background: #1d1d1d;
+    -fx-background-color: #1d1d1d;
+    -fx-table-cell-border-color: transparent;
+    -fx-table-header-border-color: transparent;
+    -fx-padding: 5;
+}
+
+.table-view .column-header-background {
+    -fx-background-color: transparent;
+}
+
+.table-view .column-header, .table-view .filler {
+    -fx-border-width: 0 0 1 0;
+    -fx-background-color: transparent;
+    -fx-border-color: 
+        transparent
+        transparent
+        derive(-fx-base, 80%) 
+        transparent;
+    -fx-border-insets: 0 10 1 0;
+}
+
+.table-view .column-header .label {
+    -fx-font-size: 20pt;
+    -fx-font-family: "Segoe UI Light";
+    -fx-text-fill: white;
+    -fx-alignment: center-left;
+    -fx-opacity: 1;
+}
+
+.table-view:focused .table-row-cell:filled:focused:selected {
+    -fx-background-color: -fx-focus-color;
+}
+
+.split-pane:horizontal > .split-pane-divider {
+    -fx-border-color: transparent #1d1d1d transparent #1d1d1d;
+    -fx-background-color: transparent, derive(#1d1d1d,20%);
+}
+
+.split-pane {
+    -fx-padding: 1 0 0 0;
+}
+
+.menu-bar {
+    -fx-background-color: derive(#1d1d1d,20%);
+}
+
+.context-menu {
+    -fx-background-color: derive(#1d1d1d,50%);
+}
+
+.menu-bar .label {
+    -fx-font-size: 14pt;
+    -fx-font-family: "Segoe UI Light";
+    -fx-text-fill: white;
+    -fx-opacity: 0.9;
+}
+
+.menu .left-container {
+    -fx-background-color: black;
+}
+
+.text-field {
+    -fx-font-size: 12pt;
+    -fx-font-family: "Segoe UI Semibold";
+}
+
+/* 
+ * Metro style Push Button
+ * Author: Pedro Duque Vieira
+ * http://pixelduke.wordpress.com/2012/10/23/jmetro-windows-8-controls-on-java/
+ */
+.button {
+    -fx-padding: 5 22 5 22;   
+    -fx-border-color: #e2e2e2;
+    -fx-border-width: 2;
+    -fx-background-radius: 0;
+    -fx-background-color: #1d1d1d;
+    -fx-font-family: "Segoe UI", Helvetica, Arial, sans-serif;
+    -fx-font-size: 11pt;
+    -fx-text-fill: #d8d8d8;
+    -fx-background-insets: 0 0 0 0, 0, 1, 2;
+}
+
+.button:hover {
+    -fx-background-color: #3a3a3a;
+}
+
+.button:pressed, .button:default:hover:pressed {
+  -fx-background-color: white;
+  -fx-text-fill: #1d1d1d;
+}
+
+.button:focused {
+    -fx-border-color: white, white;
+    -fx-border-width: 1, 1;
+    -fx-border-style: solid;
+    -fx-border-radius: 0, 0;
+    -fx-border-insets: 1 1 1 1, 0;
+}
+
+.button:disabled, .button:default:disabled {
+    -fx-opacity: 0.4;
+    -fx-background-color: #1d1d1d;
+    -fx-text-fill: white;
+}
+
+.button:default {
+    -fx-background-color: -fx-focus-color;
+    -fx-text-fill: #ffffff;
+}
+
+.button:default:hover {
+    -fx-background-color: derive(-fx-focus-color,30%);
+}
\ No newline at end of file

build/resources/main/view/view.fxml

+<?xml version="1.0" encoding="UTF-8"?>
+
+<?import javafx.scene.control.Button?>
+<?import javafx.scene.layout.HBox?>
+<?import javafx.scene.layout.VBox?>
+<?import view.FirefighterGrid?>
+
+<?import javafx.scene.control.ToggleButton?>
+<?import javafx.scene.control.Separator?>
+<?import javafx.scene.control.Label?>
+<HBox styleClass="background" stylesheets="@DarkTheme.css"
+      xmlns="http://javafx.com/javafx" xmlns:fx="http://javafx.com/fxml"
+      fx:controller="controller.Controller">
+  <VBox>
+    <Separator maxHeight="-Infinity" maxWidth="-Infinity"
+               prefHeight="24.0" prefWidth="200.0"/>
+    <Label maxHeight="-Infinity" maxWidth="-Infinity" alignment="CENTER" prefHeight="24.0" prefWidth="200.0"
+           text="Generation number"/>
+    <Label fx:id="generationNumberLabel" alignment="CENTER" contentDisplay="TEXT_ONLY"
+           maxHeight="-Infinity" maxWidth="-Infinity" prefHeight="24.0" prefWidth="200.0"/>
+    <Separator maxHeight="-Infinity" maxWidth="-Infinity"
+               prefHeight="24.0" prefWidth="200.0"/>
+    <Button fx:id="restartButton" maxHeight="-Infinity" maxWidth="-Infinity"
+            mnemonicParsing="false" onAction="#restartButtonAction" prefHeight="24.0" prefWidth="200.0"
+            text="Restart"/>
+    <Button fx:id="oneStepButton" maxHeight="-Infinity" maxWidth="-Infinity"
+            mnemonicParsing="false" onAction="#oneStepButtonAction" prefHeight="24.0" prefWidth="200.0"
+            text="One step"/>
+    <ToggleButton fx:id="playToggleButton" maxHeight="-Infinity" maxWidth="-Infinity"
+                  mnemonicParsing="false" onAction="#playToggleButtonAction" prefHeight="24.0"
+                  prefWidth="200.0" styleClass="button" text="Play"/>
+    <ToggleButton fx:id="pauseToggleButton" maxHeight="-Infinity" maxWidth="-Infinity"
+                  mnemonicParsing="false" onAction="#pauseToggleButtonAction" prefHeight="24.0"
+                  prefWidth="200.0" styleClass="button" text="Pause"/>
+  </VBox>
+  <FirefighterGrid fx:id="grid" width="600.0" height="600.0"
+                   xmlns="http://javafx.com/javafx"
+                   xmlns:fx="http://javafx.com/fxml">
+  </FirefighterGrid>
+</HBox>