diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index 7d3d9b4..208bbfa 100644
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -1,12 +1,12 @@
 plugins {
     id("org.jetbrains.kotlin.jvm") version "1.8.10"
-    id("org.openjfx.javafxplugin") version "0.0.8"
+    id("org.openjfx.javafxplugin") version "0.0.12"
     application
 }
 
 javafx {
-    version = "11.0.2"
-    modules("javafx.controls")
+    version = "17"
+    modules ( "javafx.controls", "javafx.fxml" )
 }
 
 repositories {
diff --git a/app/src/main/kotlin/app/App.kt b/app/src/main/kotlin/app/App.kt
index 75ce792..2af3768 100644
--- a/app/src/main/kotlin/app/App.kt
+++ b/app/src/main/kotlin/app/App.kt
@@ -1,9 +1,18 @@
 package app
 
 import app.view.MainView
+import javafx.stage.Stage
 import tornadofx.*
 
-class MainApp: App(MainView::class)
+class MainApp: App(MainView::class){
+    override fun start(stage: Stage) {
+        with(stage){
+            width = 600.0
+            height = 400.0
+        }
+        super.start(stage)
+    }
+}
 
 fun main() {
     launch<MainApp>()
diff --git a/app/src/main/kotlin/app/view/MainView.kt b/app/src/main/kotlin/app/view/MainView.kt
index 5255fa2..751c32a 100644
--- a/app/src/main/kotlin/app/view/MainView.kt
+++ b/app/src/main/kotlin/app/view/MainView.kt
@@ -1,10 +1,15 @@
 package app.view
-
+import app.view.treeView.BinarySearchTreeView
 import tornadofx.*
 
-class MainView: View("Trees") {
-    override val root = vbox {
-        button("Hello, World!")
-        label("Waiting")
+class MainView: View(){
+    private val tree = BinarySearchTreeView()
+    override val root = borderpane {
+        center{
+            add(tree)
+        }
+        left{
+            button("reset")
+        }
     }
 }
\ No newline at end of file
diff --git a/app/src/main/kotlin/app/view/treeView/AVLTreeView.kt b/app/src/main/kotlin/app/view/treeView/AVLTreeView.kt
new file mode 100644
index 0000000..c2a8bf9
--- /dev/null
+++ b/app/src/main/kotlin/app/view/treeView/AVLTreeView.kt
@@ -0,0 +1,16 @@
+package app.view.treeView
+import tornadofx.*
+class AVLTreeView: View() {
+    override val root = vbox {
+        button("Binary Search Tree") {
+            action {
+                replaceWith<BinarySearchTreeView>()
+            }
+        }
+        button("Red Black Tree") {
+            action {
+                replaceWith<RedBlackTreeView>()
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/kotlin/app/view/treeView/BinarySearchTreeView.kt b/app/src/main/kotlin/app/view/treeView/BinarySearchTreeView.kt
new file mode 100644
index 0000000..2224fc7
--- /dev/null
+++ b/app/src/main/kotlin/app/view/treeView/BinarySearchTreeView.kt
@@ -0,0 +1,17 @@
+package app.view.treeView
+import tornadofx.*
+
+class BinarySearchTreeView: View() {
+    override val root = vbox {
+        button("AVL Tree") {
+            action {
+                replaceWith<AVLTreeView>()
+            }
+        }
+        button("Red Black Tree") {
+            action {
+                replaceWith<RedBlackTreeView>()
+            }
+        }
+    }
+}
diff --git a/app/src/main/kotlin/app/view/treeView/RedBlackTreeView.kt b/app/src/main/kotlin/app/view/treeView/RedBlackTreeView.kt
new file mode 100644
index 0000000..787f2e6
--- /dev/null
+++ b/app/src/main/kotlin/app/view/treeView/RedBlackTreeView.kt
@@ -0,0 +1,23 @@
+package app.view.treeView
+import app.view.treeView.AVLTreeView
+import app.view.treeView.BinarySearchTreeView
+import tornadofx.View
+import tornadofx.action
+import tornadofx.button
+import tornadofx.vbox
+
+class RedBlackTreeView: View() {
+    override val root = vbox {
+        button("AVL Tree") {
+            action {
+                replaceWith<AVLTreeView>()
+            }
+        }
+
+        button("Binary Search Tree") {
+            action {
+                replaceWith<BinarySearchTreeView>()
+            }
+        }
+    }
+}
\ No newline at end of file