diff --git a/src/minecraft/net/machinemuse/general/gui/CosmeticGui.scala b/src/minecraft/net/machinemuse/general/gui/CosmeticGui.scala
index ad55dce..49ca805 100644
--- a/src/minecraft/net/machinemuse/general/gui/CosmeticGui.scala
+++ b/src/minecraft/net/machinemuse/general/gui/CosmeticGui.scala
@@ -4,6 +4,9 @@ import net.minecraft.entity.player.EntityPlayer
 import net.machinemuse.general.gui.frame.{ColourPickerFrame, ItemModelViewFrame, PartManipContainer, ItemSelectionFrame}
 import net.machinemuse.general.geometry.{MuseRect, Colour, MusePoint2D}
 import net.minecraft.item.ItemStack
+import net.machinemuse.utils.render.GlowBuffer
+import net.minecraft.client.gui.ScaledResolution
+import net.machinemuse.powersuits.common.Config
 
 /**
  * Author: MachineMuse (Claire Semple)
@@ -62,5 +65,14 @@ class CosmeticGui(val player: EntityPlayer) extends MuseGui {
     super.update()
   }
 
-
+  override def drawScreen(x: Int, y: Int, z: Float) {
+    if (Config.canUseShaders) {
+      GlowBuffer.clear()
+    }
+    super.drawScreen(x, y, z)
+    if (Config.canUseShaders) {
+      val screen: ScaledResolution = new ScaledResolution(mc.gameSettings, mc.displayWidth, mc.displayHeight)
+      GlowBuffer.drawFullScreen(screen)
+    }
+  }
 }
diff --git a/src/minecraft/net/machinemuse/general/gui/frame/ItemModelViewFrame.scala b/src/minecraft/net/machinemuse/general/gui/frame/ItemModelViewFrame.scala
index 02d4ad5..1fb4972 100644
--- a/src/minecraft/net/machinemuse/general/gui/frame/ItemModelViewFrame.scala
+++ b/src/minecraft/net/machinemuse/general/gui/frame/ItemModelViewFrame.scala
@@ -9,6 +9,7 @@ import org.lwjgl.opengl.GL11._
 import net.machinemuse.utils.{MuseMathUtils, MuseItemUtils}
 import net.minecraft.nbt.NBTTagCompound
 import net.machinemuse.powersuits.item.ItemPowerArmor
+import net.machinemuse.utils.render.MuseRenderer
 
 /**
  * Author: MachineMuse (Claire Semple)
@@ -69,15 +70,17 @@ class ItemModelViewFrame(itemSelector: ItemSelectionFrame, topleft: MusePoint2D,
         anchorx = mousex
         anchory = mousey
       }
+      case _ => None
     }
   }
 
   def draw() {
+    val mc: Minecraft = Minecraft.getMinecraft
     border.draw()
     if (itemSelector.getSelectedItem == null || !getSelectedItem.getItem.getItem.isInstanceOf[ItemPowerArmor]) return
     glPushMatrix()
     ArmorModel.instance.renderSpec = MuseItemUtils.getMuseRenderTag(getSelectedItem.getItem, getArmorSlot)
-    ArmorModel.instance.visible = getArmorSlot
+    ArmorModel.instance.visibleSection = getArmorSlot
     glTranslated(border.centerx + offsetx, border.centery + offsety, 0)
     glScaled(zoom, zoom, zoom)
     glClear(GL_DEPTH_BUFFER_BIT)
@@ -85,7 +88,7 @@ class ItemModelViewFrame(itemSelector: ItemSelectionFrame, topleft: MusePoint2D,
     glRotatef(rotx.toFloat, 1, 0, 0)
     glRotatef(roty.toFloat, 0, 1, 0)
     glTranslated(0, -getArmorSlot / 2.0, 0)
-    ArmorModel.instance.render(Minecraft.getMinecraft.thePlayer, 0, 0, 0, 0, 0, 0.0625f)
+    ArmorModel.instance.render(mc.thePlayer, 0, 0, 0, 0, 0, 0.0625f)
     glPopMatrix()
   }
 
diff --git a/src/minecraft/net/machinemuse/general/gui/frame/PartManipSubFrame.scala b/src/minecraft/net/machinemuse/general/gui/frame/PartManipSubFrame.scala
index 53c75d4..0c34563 100644
--- a/src/minecraft/net/machinemuse/general/gui/frame/PartManipSubFrame.scala
+++ b/src/minecraft/net/machinemuse/general/gui/frame/PartManipSubFrame.scala
@@ -81,7 +81,7 @@ class PartManipSubFrame(val model: ModelSpec, val colourframe: ColourPickerFrame
       val tagdata = getOrDontGetSpecTag(spec)
       tagdata.map(e => {
         val oldindex = spec.getColourIndex(e)
-        if (oldindex >= index) {
+        if (oldindex >= index && oldindex > 0) {
           spec.setColourIndex(e, oldindex - 1)
           if (player.worldObj.isRemote) player.sendQueue.addToSendQueue(new MusePacketCosmeticInfo(player.asInstanceOf[Player], getSelectedItem.inventorySlot, tagname, e).getPacket250)
         }
diff --git a/src/minecraft/net/machinemuse/powersuits/client/render/item/ArmorModel.scala b/src/minecraft/net/machinemuse/powersuits/client/render/item/ArmorModel.scala
index 4cd4a0d..5251591 100644
--- a/src/minecraft/net/machinemuse/powersuits/client/render/item/ArmorModel.scala
+++ b/src/minecraft/net/machinemuse/powersuits/client/render/item/ArmorModel.scala
@@ -16,7 +16,7 @@ object ArmorModel {
 
 trait ArmorModel extends ModelBiped {
   var renderSpec: NBTTagCompound = null
-  var visible: Int = 0
+  var visibleSection: Int = 0
 
   def clearAndAddChildWithInitialOffsets(mr: ModelRenderer, xo: Float, yo: Float, zo: Float) {
     mr.cubeList.clear()
diff --git a/src/minecraft/net/machinemuse/powersuits/client/render/modelspec/RenderPart.scala b/src/minecraft/net/machinemuse/powersuits/client/render/modelspec/RenderPart.scala
index dd69d84..16979dc 100644
--- a/src/minecraft/net/machinemuse/powersuits/client/render/modelspec/RenderPart.scala
+++ b/src/minecraft/net/machinemuse/powersuits/client/render/modelspec/RenderPart.scala
@@ -23,7 +23,7 @@ class RenderPart(base: ModelBase, val parent: ModelRenderer) extends ModelRender
     for {
       nbt <- NBTTagAccessor.getValues(renderSpec).asScala
       part <- ModelRegistry.getPart(nbt)
-      if part.slot == ArmorModel.instance.visible
+      if part.slot == ArmorModel.instance.visibleSection
       if part.morph.apply(ArmorModel.instance) == parent
     } {
       withMaybeGlow(part, nbt) {
@@ -33,7 +33,7 @@ class RenderPart(base: ModelBase, val parent: ModelRenderer) extends ModelRender
             Minecraft.getMinecraft.renderEngine.bindTexture(part.getTexture(nbt))
             applyTransform
             val ix = part.getColourIndex(nbt)
-            if (ix < colours.size) {
+            if (ix < colours.size && ix >= 0) {
               Colour.doGLByInt(colours(ix))
             }
             part.modelSpec.applyOffsetAndRotation // not yet implemented
diff --git a/src/minecraft/net/machinemuse/powersuits/item/ItemPowerArmor.scala b/src/minecraft/net/machinemuse/powersuits/item/ItemPowerArmor.scala
index d1e983e..e43cc43 100644
--- a/src/minecraft/net/machinemuse/powersuits/item/ItemPowerArmor.scala
+++ b/src/minecraft/net/machinemuse/powersuits/item/ItemPowerArmor.scala
@@ -65,7 +65,7 @@ abstract class ItemPowerArmor(id: Int, renderIndex: Int, armorType: Int)
   override def getArmorModel(entityLiving: EntityLiving, itemstack: ItemStack, armorSlot: Int): ModelBiped = {
     val model: ArmorModel = ArmorModel.instance
 
-    model.visible = armorSlot
+    model.visibleSection = armorSlot
 
     if (itemstack != null) {
       if (entityLiving.isInstanceOf[EntityPlayer]) {