diff --git a/core/src/io/anuke/mindustry/ui/MenuButton.java b/core/src/io/anuke/mindustry/ui/MenuButton.java
deleted file mode 100644
index 7651ff7a6c..0000000000
--- a/core/src/io/anuke/mindustry/ui/MenuButton.java
+++ /dev/null
@@ -1,33 +0,0 @@
-package io.anuke.mindustry.ui;
-
-import io.anuke.arc.graphics.Color;
-import io.anuke.arc.scene.ui.TextButton;
-import io.anuke.arc.util.Align;
-
-import static io.anuke.mindustry.Vars.iconsize;
-
-public class MenuButton extends TextButton{
-
-    public MenuButton(String icon, String text, Runnable clicked){
-        this(icon, text, null, clicked);
-    }
-
-    public MenuButton(String icon, String text, String description, Runnable clicked){
-        super("default");
-
-        clicked(clicked);
-        clearChildren();
-
-        margin(0);
-
-        table(t -> {
-            t.addImage(icon).size(iconsize).padLeft(6);
-
-            t.add(text).wrap().growX().get().setAlignment(Align.center, Align.left);
-            if(description != null){
-                t.row();
-                t.add(description).color(Color.LIGHT_GRAY);
-            }
-        }).padLeft(5).growX();
-    }
-}
diff --git a/core/src/io/anuke/mindustry/ui/dialogs/TechTreeDialog.java b/core/src/io/anuke/mindustry/ui/dialogs/TechTreeDialog.java
index d26477693a..5682dbecbb 100644
--- a/core/src/io/anuke/mindustry/ui/dialogs/TechTreeDialog.java
+++ b/core/src/io/anuke/mindustry/ui/dialogs/TechTreeDialog.java
@@ -7,6 +7,7 @@ import io.anuke.arc.graphics.Color;
 import io.anuke.arc.graphics.g2d.Draw;
 import io.anuke.arc.graphics.g2d.Lines;
 import io.anuke.arc.math.Interpolation;
+import io.anuke.arc.math.geom.Rectangle;
 import io.anuke.arc.scene.Element;
 import io.anuke.arc.scene.Group;
 import io.anuke.arc.scene.actions.Actions;
@@ -33,6 +34,7 @@ public class TechTreeDialog extends FloatingDialog{
     private final float nodeSize = Unit.dp.scl(60f);
     private ObjectSet<TechTreeNode> nodes = new ObjectSet<>();
     private TechTreeNode root = new TechTreeNode(TechTree.root, null);
+    private Rectangle bounds = new Rectangle();
     private ItemsDisplay items;
 
     public TechTreeDialog(){
@@ -68,6 +70,7 @@ public class TechTreeDialog extends FloatingDialog{
         layout.gapBetweenNodes = Unit.dp.scl(40f);
         LayoutNode node = new LayoutNode(root, null);
         layout.layout(node);
+        bounds.set(layout.getBounds());
         copyInfo(node);
     }
 
@@ -312,6 +315,8 @@ public class TechTreeDialog extends FloatingDialog{
                 }
             }
 
+            Lines.rect(bounds.x + Core.graphics.getWidth()/2f, bounds.y + Core.graphics.getHeight()/2f, bounds.width, bounds.height);
+
             Draw.reset();
             super.draw();
         }