diff --git a/TerraForgedMod/build.gradle b/TerraForgedMod/build.gradle
index 9749444..793201e 100644
--- a/TerraForgedMod/build.gradle
+++ b/TerraForgedMod/build.gradle
@@ -42,7 +42,7 @@ minecraft {
             workingDirectory project.file("run/client")
             property "forge.logging.markers", "SCAN,REGISTRIES,REGISTRYDUMP"
             property "forge.logging.console.level", "debug"
-            jvmArgs "-Xmx8G", "-Xms6G", "-Ddev"
+            jvmArgs "-Xmx8G", "-Xms6G", "-Ddev", "-DvanillaBiomes"
             mods {
                 terraforged {
                     source sourceSets.main
diff --git a/TerraForgedMod/src/main/java/com/terraforged/mod/chunk/TerraChunkGenerator.java b/TerraForgedMod/src/main/java/com/terraforged/mod/chunk/TerraChunkGenerator.java
index c951ffc..bf09d7e 100644
--- a/TerraForgedMod/src/main/java/com/terraforged/mod/chunk/TerraChunkGenerator.java
+++ b/TerraForgedMod/src/main/java/com/terraforged/mod/chunk/TerraChunkGenerator.java
@@ -65,6 +65,7 @@ import com.terraforged.mod.feature.TerrainHelper;
 import com.terraforged.mod.feature.predicate.TreeLine;
 import com.terraforged.mod.material.Materials;
 import com.terraforged.mod.material.geology.GeoManager;
+import com.terraforged.mod.util.Environment;
 import com.terraforged.mod.util.setup.SetupHooks;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.util.math.ChunkPos;
@@ -208,7 +209,7 @@ public class TerraChunkGenerator extends ObfHelperChunkGenerator<GenerationSetti
         postProcess(container.getChunkReader(), container, context);
 
         // bake biome array & discard gen data
-        ((ChunkPrimer) chunk).func_225548_a_(container.bakeBiomes(false));
+        ((ChunkPrimer) chunk).func_225548_a_(container.bakeBiomes(Environment.isVanillaBiomes()));
     }
 
     @Override
diff --git a/TerraForgedMod/src/main/java/com/terraforged/mod/gui/OverlayScreen.java b/TerraForgedMod/src/main/java/com/terraforged/mod/gui/OverlayScreen.java
index 4514719..289e701 100644
--- a/TerraForgedMod/src/main/java/com/terraforged/mod/gui/OverlayScreen.java
+++ b/TerraForgedMod/src/main/java/com/terraforged/mod/gui/OverlayScreen.java
@@ -78,8 +78,8 @@ public class OverlayScreen extends Screen implements OverlayRenderer {
 
             @Override
             public void render(int mouseX, int mouseY, float partial) {
-                this.x = OverlayScreen.this.width - width - 12;
-                this.y = 8;
+                this.x = OverlayScreen.this.width - width - 13;
+                this.y = 6;
                 super.render(mouseX, mouseY, partial);
             }
         });
diff --git a/TerraForgedMod/src/main/java/com/terraforged/mod/gui/ScrollPane.java b/TerraForgedMod/src/main/java/com/terraforged/mod/gui/ScrollPane.java
index 211044b..2a58688 100644
--- a/TerraForgedMod/src/main/java/com/terraforged/mod/gui/ScrollPane.java
+++ b/TerraForgedMod/src/main/java/com/terraforged/mod/gui/ScrollPane.java
@@ -113,7 +113,7 @@ public class ScrollPane extends AbstractOptionList<ScrollPane.Entry> implements
             option.y = top;
             option.visible = true;
             option.setWidth(optionWidth);
-            option.setHeight(height);
+            option.setHeight(height - 1);
             if (option instanceof Preview) {
                 option.setHeight(option.getWidth());
             }
diff --git a/TerraForgedMod/src/main/java/com/terraforged/mod/gui/element/CheckBox.java b/TerraForgedMod/src/main/java/com/terraforged/mod/gui/element/CheckBox.java
index 5a6cfeb..bf68624 100644
--- a/TerraForgedMod/src/main/java/com/terraforged/mod/gui/element/CheckBox.java
+++ b/TerraForgedMod/src/main/java/com/terraforged/mod/gui/element/CheckBox.java
@@ -33,7 +33,7 @@ public class CheckBox extends TerraButton implements Element {
         super(displayString);
         this.visible = true;
         this.width = 70;
-        this.height = 16;
+        this.height = 20;
         checked = isChecked;
     }
 
diff --git a/TerraForgedMod/src/main/java/com/terraforged/mod/gui/element/TerraButton.java b/TerraForgedMod/src/main/java/com/terraforged/mod/gui/element/TerraButton.java
index aa6c651..8628c84 100644
--- a/TerraForgedMod/src/main/java/com/terraforged/mod/gui/element/TerraButton.java
+++ b/TerraForgedMod/src/main/java/com/terraforged/mod/gui/element/TerraButton.java
@@ -25,13 +25,13 @@
 
 package com.terraforged.mod.gui.element;
 
-import net.minecraftforge.fml.client.gui.widget.ExtendedButton;
+import net.minecraft.client.gui.widget.button.Button;
 
 import java.util.Arrays;
 import java.util.Collections;
 import java.util.List;
 
-public class TerraButton extends ExtendedButton implements Element {
+public class TerraButton extends Button implements Element {
 
     private final List<String> tooltip;
 
diff --git a/TerraForgedMod/src/main/java/com/terraforged/mod/gui/page/Page.java b/TerraForgedMod/src/main/java/com/terraforged/mod/gui/page/Page.java
index 3bc71f0..f806fad 100644
--- a/TerraForgedMod/src/main/java/com/terraforged/mod/gui/page/Page.java
+++ b/TerraForgedMod/src/main/java/com/terraforged/mod/gui/page/Page.java
@@ -195,7 +195,7 @@ public abstract class Page implements IGuiEventListener, OverlayRenderer {
             this.bottom = height - hpad;
             this.width = width;
             this.height = height;
-            this.scrollPane = new ScrollPane(22);
+            this.scrollPane = new ScrollPane(25);
             this.scrollPane.updateSize(width, height, 30, height - 30);
             this.scrollPane.setLeftPos(this.left);
         }
diff --git a/TerraForgedMod/src/main/java/com/terraforged/mod/util/Environment.java b/TerraForgedMod/src/main/java/com/terraforged/mod/util/Environment.java
index d539ac0..5d57520 100644
--- a/TerraForgedMod/src/main/java/com/terraforged/mod/util/Environment.java
+++ b/TerraForgedMod/src/main/java/com/terraforged/mod/util/Environment.java
@@ -30,11 +30,16 @@ import com.terraforged.mod.Log;
 public class Environment {
 
     private static final boolean dev = System.getProperty("dev") != null;
+    private static final boolean vanillaBiomes = System.getProperty("vanillaBiomes") != null;
 
     public static boolean isDev() {
         return dev;
     }
 
+    public static boolean isVanillaBiomes() {
+        return vanillaBiomes;
+    }
+
     static {
         if (dev) {
             Log.info("Running in developer mode!");