diff --git a/src/main/scala/ocelot/desktop/node/nodes/ComputerNode.scala b/src/main/scala/ocelot/desktop/node/nodes/ComputerNode.scala
index a194fbd..d68575c 100644
--- a/src/main/scala/ocelot/desktop/node/nodes/ComputerNode.scala
+++ b/src/main/scala/ocelot/desktop/node/nodes/ComputerNode.scala
@@ -15,7 +15,7 @@ import ocelot.desktop.ui.event.sources.KeyEvents
 import ocelot.desktop.ui.event.{BrainEvent, ClickEvent, MouseEvent}
 import ocelot.desktop.ui.widget.Label
 import ocelot.desktop.ui.widget.contextmenu.{ContextMenu, ContextMenuEntry, ContextMenuSubmenu}
-import ocelot.desktop.ui.widget.slot.reimpl._
+import ocelot.desktop.ui.widget.slot._
 import ocelot.desktop.util.{Logging, Messages, TierColor}
 import ocelot.desktop.windows.ComputerWindow
 import org.lwjgl.input.Keyboard
diff --git a/src/main/scala/ocelot/desktop/node/nodes/DiskDriveNode.scala b/src/main/scala/ocelot/desktop/node/nodes/DiskDriveNode.scala
index 4928755..f94cd7c 100644
--- a/src/main/scala/ocelot/desktop/node/nodes/DiskDriveNode.scala
+++ b/src/main/scala/ocelot/desktop/node/nodes/DiskDriveNode.scala
@@ -5,7 +5,7 @@ import ocelot.desktop.graphics.Graphics
 import ocelot.desktop.inventory.SyncedInventory
 import ocelot.desktop.inventory.item.{FloppyItem, FloppyItemFactory}
 import ocelot.desktop.node.Node
-import ocelot.desktop.ui.widget.slot.reimpl.FloppySlotWidget
+import ocelot.desktop.ui.widget.slot.FloppySlotWidget
 import ocelot.desktop.windows.DiskDriveWindow
 import totoro.ocelot.brain.entity.FloppyDiskDrive
 import totoro.ocelot.brain.entity.traits.Inventory
diff --git a/src/main/scala/ocelot/desktop/ui/widget/slot/CPUSlot.scala b/src/main/scala/ocelot/desktop/ui/widget/slot/CPUSlot.scala
deleted file mode 100644
index f3b9d9d..0000000
--- a/src/main/scala/ocelot/desktop/ui/widget/slot/CPUSlot.scala
+++ /dev/null
@@ -1,76 +0,0 @@
-package ocelot.desktop.ui.widget.slot
-
-import ocelot.desktop.graphics.{IconDef, Icons}
-import ocelot.desktop.node.nodes.ComputerNode
-import ocelot.desktop.ui.widget.contextmenu.{ContextMenu, ContextMenuEntry, ContextMenuSubmenu}
-import totoro.ocelot.brain.entity.machine.MachineAPI
-import totoro.ocelot.brain.entity.traits.{Entity, GenericCPU, Inventory}
-import totoro.ocelot.brain.entity.{APU, CPU}
-import totoro.ocelot.brain.util.Tier
-import totoro.ocelot.brain.util.Tier.Tier
-
-class CPUSlot(owner: Inventory#Slot, node: ComputerNode, val tier: Tier) extends InventorySlot[GenericCPU with Entity](owner) {
-
-  override def itemIcon: Option[IconDef] = item match {
-    case Some(cpu: CPU) => Some(Icons.Cpu(cpu.tier))
-    case Some(apu: APU) => Some(Icons.Apu(apu.tier))
-    case _ => None
-  }
-
-  override def icon: IconDef = Icons.CpuIcon
-  override def tierIcon: Option[IconDef] = Some(Icons.TierIcon(tier))
-
-  override def fillLmbMenu(menu: ContextMenu): Unit = {
-    for (tier <- Tier.One to Tier.Three if this.tier >= tier) {
-      menu.addEntry(new ContextMenuEntry(s"CPU (${tier.label})",
-        () => item = new CPU(tier),
-        icon = Some(Icons.Cpu(tier))))
-    }
-
-    if (tier < Tier.Two) return
-
-    menu.addEntry(new ContextMenuSubmenu("APU (CPU + GPU)", icon = Some(Icons.GraphicsCard(Tier.Two))) {
-      addEntry(new ContextMenuEntry("Tier 2",
-        () => item = new APU(Tier.One),
-        icon = Some(Icons.Apu(Tier.One))))
-
-      if (tier >= Tier.Three) {
-        addEntry(new ContextMenuEntry("Tier 3",
-          () => item = new APU(Tier.Two),
-          icon = Some(Icons.Apu(Tier.Two))))
-
-        addEntry(new ContextMenuEntry("Creative",
-          () => item = new APU(Tier.Three),
-          icon = Some(Icons.Apu(Tier.Three))))
-      }
-    })
-  }
-
-  override def fillRmbMenu(menu: ContextMenu): Unit = {
-    if (item.isEmpty) return
-
-    val cpu = item.get
-
-    menu.addEntry(new ContextMenuSubmenu("Set architecture") {
-      for (arch <- cpu.allArchitectures) {
-        val name = MachineAPI.getArchitectureName(arch) +
-          (if (arch == cpu.architecture) " (current)" else "")
-
-        addEntry(new ContextMenuEntry(name, () => {
-          val machine = node.computer.machine
-          if (machine.isRunning) {
-            machine.stop()
-            cpu.setArchitecture(arch)
-            machine.start()
-          } else {
-            cpu.setArchitecture(arch)
-          }
-        }))
-      }
-    })
-
-    super.fillRmbMenu(menu)
-  }
-
-  override def lmbMenuEnabled: Boolean = true
-}
diff --git a/src/main/scala/ocelot/desktop/ui/widget/slot/CardRegistry.scala b/src/main/scala/ocelot/desktop/ui/widget/slot/CardRegistry.scala
deleted file mode 100644
index c4f0664..0000000
--- a/src/main/scala/ocelot/desktop/ui/widget/slot/CardRegistry.scala
+++ /dev/null
@@ -1,72 +0,0 @@
-package ocelot.desktop.ui.widget.slot
-
-import ocelot.desktop.graphics.{IconDef, Icons}
-import totoro.ocelot.brain.entity.sound_card.SoundCard
-import totoro.ocelot.brain.entity.traits.{Entity, Tiered, TieredPersistable}
-import totoro.ocelot.brain.entity.{DataCard, GraphicsCard, InternetCard, LinkedCard, NetworkCard, Redstone, SelfDestructingCard, WirelessNetworkCard}
-import totoro.ocelot.brain.util.Tier
-import totoro.ocelot.brain.util.Tier.Tier
-
-import scala.collection.mutable
-import scala.reflect.{ClassTag, classTag}
-
-object CardRegistry {
-  case class Entry(name: String, tier: Tier, icon: IconDef, factory: () => Entity)
-
-  val iconByClass: mutable.HashMap[String, IconDef] = mutable.HashMap()
-  val tierByClass: mutable.HashMap[String, Tier] = mutable.HashMap()
-  val iconByClassAndTier: mutable.HashMap[(String, Tier), IconDef] = mutable.HashMap()
-  val entries: mutable.ArrayBuffer[Entry] = mutable.ArrayBuffer()
-
-  def addEntry[T <: Entity : ClassTag](name: String, tier: Tier, icon: IconDef, factory: () => T): Unit = {
-    val entry = Entry(name, tier, icon, factory)
-    entries += entry
-    val clazz = classTag[T].runtimeClass.getName
-    iconByClass.addOne((clazz, icon))
-    tierByClass.addOne((clazz, tier))
-    iconByClassAndTier.addOne(((clazz, entry.tier), icon))
-  }
-
-  def getIcon(entity: Entity): Option[IconDef] = {
-    val clazz = entity.getClass.getName
-    entity match {
-      case t: TieredPersistable => iconByClassAndTier.get((clazz, t.tier))
-      case _ => iconByClass.get(clazz)
-    }
-  }
-
-  def getTier(entity: Entity): Tier = {
-    val clazz = entity.getClass.getName
-    entity match {
-      case t: Tiered => t.tier
-      case _ => tierByClass.getOrElse(clazz, Tier.One)
-    }
-  }
-
-  for (tier <- Tier.One to Tier.Three) {
-    addEntry("Graphics Card", tier, Icons.GraphicsCard(tier), () => new GraphicsCard(tier))
-  }
-
-  addEntry("Network Card", Tier.One, Icons.NetworkCard, () => new NetworkCard)
-
-  addEntry("Wireless Net. Card", Tier.One, Icons.WirelessNetworkCard(Tier.One),
-    () => new WirelessNetworkCard.Tier1)
-  addEntry("Wireless Net. Card", Tier.Two, Icons.WirelessNetworkCard(Tier.Two),
-    () => new WirelessNetworkCard.Tier2)
-
-  addEntry("Linked Card", Tier.Three, Icons.LinkedCard, () => new LinkedCard)
-
-  addEntry("Internet Card", Tier.Two, Icons.InternetCard, () => new InternetCard)
-
-  addEntry("Redstone Card", Tier.One, Icons.RedstoneCard(Tier.One), () => new Redstone.Tier1)
-  addEntry("Redstone Card", Tier.Two, Icons.RedstoneCard(Tier.Two), () => new Redstone.Tier2)
-
-  addEntry("Data Card", Tier.One, Icons.DataCard(Tier.One), () => new DataCard.Tier1)
-  addEntry("Data Card", Tier.Two, Icons.DataCard(Tier.Two), () => new DataCard.Tier2)
-  addEntry("Data Card", Tier.Three, Icons.DataCard(Tier.Three), () => new DataCard.Tier3)
-
-  addEntry("Sound Card", Tier.Two, Icons.SoundCard, () => new SoundCard)
-
-  addEntry("Self-Destructing Card", Tier.Two, Icons.SelfDestructingCard, () => new SelfDestructingCard)
-}
-
diff --git a/src/main/scala/ocelot/desktop/ui/widget/slot/CardSlot.scala b/src/main/scala/ocelot/desktop/ui/widget/slot/CardSlot.scala
deleted file mode 100644
index 2200c0a..0000000
--- a/src/main/scala/ocelot/desktop/ui/widget/slot/CardSlot.scala
+++ /dev/null
@@ -1,84 +0,0 @@
-package ocelot.desktop.ui.widget.slot
-
-import ocelot.desktop.color.Color
-import ocelot.desktop.graphics.{IconDef, Icons}
-import ocelot.desktop.ui.UiHandler
-import ocelot.desktop.ui.widget.card.{Redstone1Window, Redstone2Window, SoundCardWindow}
-import ocelot.desktop.ui.widget.contextmenu.{ContextMenu, ContextMenuEntry, ContextMenuSubmenu}
-import ocelot.desktop.ui.widget.{Label, TunnelDialog, Widget}
-import totoro.ocelot.brain.entity.sound_card.SoundCard
-import totoro.ocelot.brain.entity.traits.{Entity, Inventory}
-import totoro.ocelot.brain.entity.{LinkedCard, Redstone}
-import totoro.ocelot.brain.util.Tier.Tier
-
-class CardSlot(owner: Inventory#Slot, val tier: Tier) extends InventorySlot[Entity](owner) {
-  override def itemIcon: Option[IconDef] = item.flatMap(it => CardRegistry.getIcon(it))
-
-  override def icon: IconDef = Icons.CardIcon
-  override def tierIcon: Option[IconDef] = Some(Icons.TierIcon(tier))
-
-  override def fillRmbMenu(menu: ContextMenu): Unit = {
-    val pool = UiHandler.root.workspaceView.windowPool
-    item match {
-      case Some(card: Redstone.Tier2) =>
-        menu.addEntry(new ContextMenuEntry("Redstone I/O", () => pool.openWindow(new Redstone1Window(card))))
-        menu.addEntry(new ContextMenuEntry("Bundled I/O", () => pool.openWindow(new Redstone2Window(card))))
-      case Some(card: Redstone.Tier1) =>
-        menu.addEntry(new ContextMenuEntry("Redstone I/O", () => pool.openWindow(new Redstone1Window(card))))
-      case Some(card: LinkedCard) =>
-        menu.addEntry(new ContextMenuEntry("Set channel", () => new TunnelDialog(
-          tunnel => card.tunnel = tunnel,
-          card.tunnel
-        ).show()))
-      case Some(card: SoundCard) =>
-        menu.addEntry(new ContextMenuEntry("Open", () => pool.openWindow(new SoundCardWindow(card))))
-      case _ =>
-    }
-    super.fillRmbMenu(menu)
-  }
-
-  override def fillLmbMenu(menu: ContextMenu): Unit = {
-    val entries = CardRegistry.entries
-
-    var i = 0
-    while (i < entries.length) {
-      val entry = entries(i)
-      val nextEntry = entries.lift(i + 1)
-
-      if (nextEntry.isDefined && nextEntry.get.name == entry.name) {
-        val groupName = entry.name
-        if (tier >= entry.tier) {
-          menu.addEntry(new ContextMenuSubmenu(groupName, icon = Some(nextEntry.get.icon)) {
-            entries.view.slice(i, entries.length).takeWhile(_.name == groupName).foreach(entry => {
-              if (tier >= entry.tier) {
-                addEntry(new ContextMenuEntry(entry.tier.label, () => item = entry.factory(), Some(entry.icon)))
-              }
-              i += 1
-            })
-          })
-        }
-      } else {
-        if (tier >= entry.tier) {
-          menu.addEntry(new ContextMenuEntry(entry.name, () => item = entry.factory(), Some(entry.icon)))
-        }
-
-        i += 1
-      }
-    }
-  }
-
-  override def lmbMenuEnabled: Boolean = true
-
-  override def tooltipChildrenAdder(inner: Widget): Unit = {
-    super.tooltipChildrenAdder(inner)
-
-    item match {
-      case Some(card: LinkedCard) =>
-        inner.children :+= new Label {
-          override def text: String = s"Channel: ${card.tunnel}"
-          override def color: Color = Color.Grey
-        }
-      case _ =>
-    }
-  }
-}
diff --git a/src/main/scala/ocelot/desktop/ui/widget/slot/reimpl/CardSlotWidget.scala b/src/main/scala/ocelot/desktop/ui/widget/slot/CardSlotWidget.scala
similarity index 89%
rename from src/main/scala/ocelot/desktop/ui/widget/slot/reimpl/CardSlotWidget.scala
rename to src/main/scala/ocelot/desktop/ui/widget/slot/CardSlotWidget.scala
index d2507d9..46f76a1 100644
--- a/src/main/scala/ocelot/desktop/ui/widget/slot/reimpl/CardSlotWidget.scala
+++ b/src/main/scala/ocelot/desktop/ui/widget/slot/CardSlotWidget.scala
@@ -1,4 +1,4 @@
-package ocelot.desktop.ui.widget.slot.reimpl
+package ocelot.desktop.ui.widget.slot
 
 import ocelot.desktop.graphics.{IconDef, Icons}
 import ocelot.desktop.inventory.Inventory
diff --git a/src/main/scala/ocelot/desktop/ui/widget/slot/reimpl/CpuSlotWidget.scala b/src/main/scala/ocelot/desktop/ui/widget/slot/CpuSlotWidget.scala
similarity index 94%
rename from src/main/scala/ocelot/desktop/ui/widget/slot/reimpl/CpuSlotWidget.scala
rename to src/main/scala/ocelot/desktop/ui/widget/slot/CpuSlotWidget.scala
index de7ffb4..ee2794c 100644
--- a/src/main/scala/ocelot/desktop/ui/widget/slot/reimpl/CpuSlotWidget.scala
+++ b/src/main/scala/ocelot/desktop/ui/widget/slot/CpuSlotWidget.scala
@@ -1,4 +1,4 @@
-package ocelot.desktop.ui.widget.slot.reimpl
+package ocelot.desktop.ui.widget.slot
 
 import ocelot.desktop.graphics.{IconDef, Icons}
 import ocelot.desktop.inventory.Inventory
diff --git a/src/main/scala/ocelot/desktop/ui/widget/slot/DiskOrFloppySlot.scala b/src/main/scala/ocelot/desktop/ui/widget/slot/DiskOrFloppySlot.scala
deleted file mode 100644
index c6dbdff..0000000
--- a/src/main/scala/ocelot/desktop/ui/widget/slot/DiskOrFloppySlot.scala
+++ /dev/null
@@ -1,29 +0,0 @@
-package ocelot.desktop.ui.widget.slot
-
-import ocelot.desktop.OcelotDesktop
-import ocelot.desktop.ui.widget.contextmenu.{ContextMenu, ContextMenuEntry}
-import totoro.ocelot.brain.entity.traits.{DiskManaged, Entity}
-
-import javax.swing.JFileChooser
-import scala.util.Try
-
-trait DiskOrFloppySlot {
-  def addSetDirectoryEntryToRmbMenu(menu: ContextMenu, slot: InventorySlot[DiskManaged with Entity]): Unit = {
-    menu.addEntry(new ContextMenuEntry(
-      "Set directory",
-      () => OcelotDesktop.showFileChooserDialog(JFileChooser.OPEN_DIALOG, JFileChooser.DIRECTORIES_ONLY) { dir =>
-        Try {
-          if (dir.isDefined && slot.item.isDefined) {
-            val item = slot.item
-            // first - unload the item with old filesystem (triggers 'component_removed' signal)
-            slot.item = None
-            // then - trigger filesystem rebuild with a new path
-            item.get.customRealPath = Some(dir.get.toPath.toAbsolutePath)
-            // finally - add the item back (triggers 'component_added' signal)
-            slot.item = item
-          }
-        }
-      }
-    ))
-  }
-}
diff --git a/src/main/scala/ocelot/desktop/ui/widget/slot/DiskSlot.scala b/src/main/scala/ocelot/desktop/ui/widget/slot/DiskSlot.scala
deleted file mode 100644
index f81afc0..0000000
--- a/src/main/scala/ocelot/desktop/ui/widget/slot/DiskSlot.scala
+++ /dev/null
@@ -1,33 +0,0 @@
-package ocelot.desktop.ui.widget.slot
-
-import ocelot.desktop.graphics.{IconDef, Icons}
-import ocelot.desktop.ui.widget.contextmenu.{ContextMenu, ContextMenuEntry}
-import totoro.ocelot.brain.entity.HDDManaged
-import totoro.ocelot.brain.entity.traits.{DiskManaged, Entity, Inventory}
-import totoro.ocelot.brain.util.Tier
-import totoro.ocelot.brain.util.Tier.Tier
-
-class DiskSlot(owner: Inventory#Slot, val tier: Tier) extends InventorySlot[HDDManaged](owner) with DiskOrFloppySlot {
-  override def itemIcon: Option[IconDef] = item.map(disk => Icons.HardDiskDrive(disk.tier))
-
-  override def icon: IconDef = Icons.HddIcon
-  override def tierIcon: Option[IconDef] = Some(Icons.TierIcon(tier))
-
-  override def fillLmbMenu(menu: ContextMenu): Unit = {
-    for (tier <- Tier.One to Tier.Three if this.tier >= tier) {
-      menu.addEntry(new ContextMenuEntry(s"HDD (${tier.label})",
-        () => item = new HDDManaged(tier),
-        icon = Some(Icons.HardDiskDrive(tier))))
-    }
-  }
-
-  override def lmbMenuEnabled: Boolean = true
-
-  override def fillRmbMenu(menu: ContextMenu): Unit = {
-    addSetDirectoryEntryToRmbMenu(menu, this.asInstanceOf[InventorySlot[DiskManaged with Entity]])
-
-    super.fillRmbMenu(menu)
-  }
-
-  override def tooltipLine1Text: String = getTooltipDeviceInfoText(item.get.fileSystem, item.get.tier)
-}
diff --git a/src/main/scala/ocelot/desktop/ui/widget/slot/EEPROMSlot.scala b/src/main/scala/ocelot/desktop/ui/widget/slot/EEPROMSlot.scala
deleted file mode 100644
index d15e1bb..0000000
--- a/src/main/scala/ocelot/desktop/ui/widget/slot/EEPROMSlot.scala
+++ /dev/null
@@ -1,102 +0,0 @@
-package ocelot.desktop.ui.widget.slot
-
-import ocelot.desktop.OcelotDesktop.showFileChooserDialog
-import ocelot.desktop.color.Color
-import ocelot.desktop.graphics.{IconDef, Icons}
-import ocelot.desktop.ui.widget.contextmenu.{ContextMenu, ContextMenuEntry, ContextMenuSubmenu}
-import ocelot.desktop.ui.widget.{InputDialog, Label, Widget}
-import totoro.ocelot.brain.entity.EEPROM
-import totoro.ocelot.brain.entity.traits.Inventory
-import totoro.ocelot.brain.loot.Loot
-
-import java.net.{MalformedURLException, URL}
-import javax.swing.JFileChooser
-import scala.util.Try
-
-class EEPROMSlot(owner: Inventory#Slot) extends InventorySlot[EEPROM](owner) {
-  override def itemIcon: Option[IconDef] = item.map(_ => Icons.Eeprom)
-
-  override def icon: IconDef = Icons.EepromIcon
-
-  override def lmbMenuEnabled: Boolean = true
-
-  override def fillLmbMenu(menu: ContextMenu): Unit = {
-    menu.addEntry(new ContextMenuEntry("Lua BIOS",
-      () => item = Loot.LuaBiosEEPROM.create(),
-      icon = Some(Icons.Eeprom)
-    ))
-
-    menu.addEntry(new ContextMenuEntry("AdvLoader",
-      () => item = Loot.AdvLoaderEEPROM.create(),
-      icon = Some(Icons.Eeprom)
-    ))
-
-    menu.addEntry(new ContextMenuEntry("Cyan BIOS",
-      () => item = Loot.CyanBIOSEEPROM.create(),
-      icon = Some(Icons.Eeprom)
-    ))
-
-    menu.addEntry(new ContextMenuEntry("Empty",
-      () => item = new EEPROM,
-      icon = Some(Icons.Eeprom)
-    ))
-  }
-
-  override def fillRmbMenu(menu: ContextMenu): Unit = {
-    val dataSourceMenu = new ContextMenuSubmenu("External data source")
-
-    dataSourceMenu.addEntry(new ContextMenuEntry(
-      "Local file",
-      () => showFileChooserDialog(JFileChooser.OPEN_DIALOG, JFileChooser.FILES_ONLY) { file =>
-        Try {
-          if (file.isDefined)
-            item.get.codePath = Some(file.get.toPath)
-        }
-      }
-    ))
-
-    dataSourceMenu.addEntry(new ContextMenuEntry("File via URL", () =>
-      new InputDialog(
-        title = "File via URL",
-        text => item.get.codeURL = Some(new URL(text)),
-        inputValidator = text => {
-          try {
-            new URL(text)
-            true
-          }
-          catch {
-            case _: MalformedURLException => false
-          }
-        }
-      ).show()
-    ))
-
-    if (item.get.codePath.isDefined || item.get.codeURL.isDefined)
-      dataSourceMenu.addEntry(new ContextMenuEntry("Detach", () => item.get.codeBytes = Some(Array.empty[Byte])))
-
-    menu.addEntry(dataSourceMenu)
-
-    super.fillRmbMenu(menu)
-  }
-
-  override def tooltipLine1Text: String = getTooltipSuffixedText(getTooltipDeviceInfoText(item.get), item.get.label)
-
-  override def tooltipChildrenAdder(inner: Widget): Unit = {
-    super.tooltipChildrenAdder(inner)
-
-    if (item.get.codePath.isEmpty && item.get.codeURL.isEmpty)
-      return
-
-    inner.children :+= new Label {
-      override def text: String = {
-        if (item.isDefined) {
-          if (item.get.codePath.isDefined) s"Source path: ${item.get.codePath.get.toString}"
-          else if (item.get.codeURL.isDefined) s"Source URL: ${item.get.codeURL.get.toString}"
-          else ""
-        } else ""
-      }
-
-      override def color: Color = Color.Grey
-    }
-  }
-}
diff --git a/src/main/scala/ocelot/desktop/ui/widget/slot/reimpl/EepromSlotWidget.scala b/src/main/scala/ocelot/desktop/ui/widget/slot/EepromSlotWidget.scala
similarity index 86%
rename from src/main/scala/ocelot/desktop/ui/widget/slot/reimpl/EepromSlotWidget.scala
rename to src/main/scala/ocelot/desktop/ui/widget/slot/EepromSlotWidget.scala
index 458bc64..a5a4cce 100644
--- a/src/main/scala/ocelot/desktop/ui/widget/slot/reimpl/EepromSlotWidget.scala
+++ b/src/main/scala/ocelot/desktop/ui/widget/slot/EepromSlotWidget.scala
@@ -1,4 +1,4 @@
-package ocelot.desktop.ui.widget.slot.reimpl
+package ocelot.desktop.ui.widget.slot
 
 import ocelot.desktop.graphics.{IconDef, Icons}
 import ocelot.desktop.inventory.Inventory
diff --git a/src/main/scala/ocelot/desktop/ui/widget/slot/FloppySlot.scala b/src/main/scala/ocelot/desktop/ui/widget/slot/FloppySlot.scala
deleted file mode 100644
index f59d8a3..0000000
--- a/src/main/scala/ocelot/desktop/ui/widget/slot/FloppySlot.scala
+++ /dev/null
@@ -1,64 +0,0 @@
-package ocelot.desktop.ui.widget.slot
-
-import ocelot.desktop.audio.{SoundBuffers, SoundCategory, SoundSource}
-import ocelot.desktop.graphics.{IconDef, Icons}
-import ocelot.desktop.ui.widget.contextmenu.{ContextMenu, ContextMenuEntry}
-import totoro.ocelot.brain.entity.FloppyManaged
-import totoro.ocelot.brain.entity.traits.{DiskManaged, Entity, Floppy, Inventory}
-import totoro.ocelot.brain.loot.Loot
-import totoro.ocelot.brain.loot.Loot.LootFloppy
-import totoro.ocelot.brain.util.DyeColor
-
-class FloppySlot(owner: Inventory#Slot) extends InventorySlot[Floppy](owner) with DiskOrFloppySlot {
-  private val soundFloppyInsert = SoundSource.fromBuffer(SoundBuffers.MachineFloppyInsert, SoundCategory.Environment)
-  private val soundFloppyEject = SoundSource.fromBuffer(SoundBuffers.MachineFloppyEject, SoundCategory.Environment)
-
-  override def itemIcon: Option[IconDef] = item.map(fl => Icons.FloppyDisk(fl.color))
-
-  override def icon: IconDef = Icons.FloppyIcon
-
-  override def fillLmbMenu(menu: ContextMenu): Unit = {
-    for (f <- FloppySlot.FloppyFactories) {
-      menu.addEntry(new ContextMenuEntry(f.name,
-        f.create,
-        icon = Some(Icons.FloppyDisk(f.color))))
-    }
-
-    menu.addEntry(new ContextMenuEntry("Empty",
-      () => item = new FloppyManaged(None, DyeColor.Gray),
-      icon = Some(Icons.FloppyDisk(DyeColor.Gray))))
-  }
-
-  override def lmbMenuEnabled: Boolean = true
-
-  override def fillRmbMenu(menu: ContextMenu): Unit = {
-    item match {
-      case Some(_: LootFloppy) =>
-        // don't allow mounting a directory for loot floppies (it's just too weird)
-
-      case Some(_: FloppyManaged) =>
-        addSetDirectoryEntryToRmbMenu(menu, this.asInstanceOf[InventorySlot[DiskManaged with Entity]])
-
-      case _ =>
-    }
-
-    super.fillRmbMenu(menu)
-  }
-
-  override def onAdded(item: Floppy): Unit = {
-    super.onAdded(item)
-    soundFloppyInsert.play()
-  }
-
-  override def onRemoved(item: Floppy): Unit = {
-    super.onRemoved(item)
-    soundFloppyEject.play()
-  }
-
-  override def tooltipLine1Text: String = item.get.label.labelOption.getOrElse("Floppy Disk")
-}
-
-object FloppySlot {
-  private val FloppyFactories = Array(Loot.OpenOsFloppy, Loot.Plan9kFloppy, Loot.OPPMFloppy,
-    Loot.OpenLoaderFloppy, Loot.NetworkFloppy, Loot.IrcFloppy, Loot.DataFloppy, Loot.HpmFloppy)
-}
\ No newline at end of file
diff --git a/src/main/scala/ocelot/desktop/ui/widget/slot/reimpl/FloppySlotWidget.scala b/src/main/scala/ocelot/desktop/ui/widget/slot/FloppySlotWidget.scala
similarity index 95%
rename from src/main/scala/ocelot/desktop/ui/widget/slot/reimpl/FloppySlotWidget.scala
rename to src/main/scala/ocelot/desktop/ui/widget/slot/FloppySlotWidget.scala
index 709e841..534228c 100644
--- a/src/main/scala/ocelot/desktop/ui/widget/slot/reimpl/FloppySlotWidget.scala
+++ b/src/main/scala/ocelot/desktop/ui/widget/slot/FloppySlotWidget.scala
@@ -1,4 +1,4 @@
-package ocelot.desktop.ui.widget.slot.reimpl
+package ocelot.desktop.ui.widget.slot
 
 import ocelot.desktop.audio.{SoundBuffers, SoundCategory, SoundSource}
 import ocelot.desktop.graphics.{IconDef, Icons}
diff --git a/src/main/scala/ocelot/desktop/ui/widget/slot/reimpl/HddSlotWidget.scala b/src/main/scala/ocelot/desktop/ui/widget/slot/HddSlotWidget.scala
similarity index 89%
rename from src/main/scala/ocelot/desktop/ui/widget/slot/reimpl/HddSlotWidget.scala
rename to src/main/scala/ocelot/desktop/ui/widget/slot/HddSlotWidget.scala
index 2b20749..c8a1db3 100644
--- a/src/main/scala/ocelot/desktop/ui/widget/slot/reimpl/HddSlotWidget.scala
+++ b/src/main/scala/ocelot/desktop/ui/widget/slot/HddSlotWidget.scala
@@ -1,4 +1,4 @@
-package ocelot.desktop.ui.widget.slot.reimpl
+package ocelot.desktop.ui.widget.slot
 
 import ocelot.desktop.graphics.{IconDef, Icons}
 import ocelot.desktop.inventory.Inventory
diff --git a/src/main/scala/ocelot/desktop/ui/widget/slot/InventorySlot.scala b/src/main/scala/ocelot/desktop/ui/widget/slot/InventorySlot.scala
deleted file mode 100644
index 691732d..0000000
--- a/src/main/scala/ocelot/desktop/ui/widget/slot/InventorySlot.scala
+++ /dev/null
@@ -1,127 +0,0 @@
-package ocelot.desktop.ui.widget.slot
-
-import ocelot.desktop.color.Color
-import ocelot.desktop.geometry.Padding2D
-import ocelot.desktop.ui.UiHandler
-import ocelot.desktop.ui.layout.LinearLayout
-import ocelot.desktop.ui.widget.contextmenu.{ContextMenu, ContextMenuEntry}
-import ocelot.desktop.ui.widget.tooltip.Tooltip
-import ocelot.desktop.ui.widget.{Label, PaddingBox, Widget}
-import ocelot.desktop.util.Orientation
-import totoro.ocelot.brain.entity.HDDManaged
-import totoro.ocelot.brain.entity.traits.{DeviceInfo, Entity, Environment, Inventory, Tiered}
-import totoro.ocelot.brain.util.Tier
-import totoro.ocelot.brain.util.Tier.Tier
-
-abstract class InventorySlot[T <: Entity](val owner: Inventory#Slot) extends SlotWidget[T] {
-  reloadItem()
-
-  override def onAdded(item: T): Unit = {
-    super.onAdded(item)
-    owner.put(item)
-  }
-
-  override def onRemoved(item: T): Unit = {
-    super.onRemoved(item)
-    owner.remove()
-  }
-
-  override def fillRmbMenu(menu: ContextMenu): Unit = {
-    item match {
-      case Some(env: Environment) =>
-        menu.addEntry(new ContextMenuEntry("Copy address", () => {
-          UiHandler.clipboard = env.node.address
-        }))
-      case _ =>
-    }
-    super.fillRmbMenu(menu)
-  }
-
-  // --------------------------- Tooltip ---------------------------
-
-  private var tooltip: Option[Tooltip] = None
-
-  def tooltipLine1Color: Color = item match {
-    case Some(tiered: Tiered) =>
-      tiered.tier match {
-        case Tier.Two => Color.Yellow
-        case Tier.Three => Color.Cyan
-        // TODO: creative???
-        case _ => Color.White
-      }
-    case _ => Color.White
-  }
-
-  final protected def getTooltipSuffixedText(part1: String, part2: String): String = s"$part1 ($part2)"
-  final protected def getTooltipTieredText(tier: Tier): String = tier.label
-  final protected def getTooltipDeviceInfoText(deviceInfo: DeviceInfo): String =
-    deviceInfo.getDeviceInfo(DeviceInfo.DeviceAttribute.Description)
-  final protected def getTooltipDeviceInfoText(deviceInfo: DeviceInfo, part2: String): String =
-    getTooltipSuffixedText(getTooltipDeviceInfoText(deviceInfo), part2)
-  final protected def getTooltipDeviceInfoText(deviceInfo: DeviceInfo, tier: Tier): String =
-    getTooltipDeviceInfoText(deviceInfo, getTooltipTieredText(tier))
-
-  def tooltipLine1Text: String = item.get match {
-    case deviceInfoTiered: DeviceInfo with Tiered =>
-      getTooltipDeviceInfoText(deviceInfoTiered, deviceInfoTiered.tier)
-    case deviceInfo: DeviceInfo =>
-      deviceInfo.getDeviceInfo(DeviceInfo.DeviceAttribute.Description)
-    case _ =>
-      ""
-  }
-
-  def tooltipChildrenAdder(inner: Widget): Unit = {
-    inner.children :+= new Label {
-      override def text: String = tooltipLine1Text
-      override def color: Color = tooltipLine1Color
-    }
-
-    item match {
-      case Some(environment: Environment) =>
-        inner.children :+= new Label {
-          override def text: String = s"Address: ${environment.node.address}"
-          override def color: Color = Color.Grey
-        }
-      case _ =>
-    }
-
-    item match {
-      case Some(hddManaged: HDDManaged) =>
-        if (hddManaged.customRealPath.isDefined) {
-          inner.children :+= new Label {
-            override def text: String = s"Source path: ${hddManaged.customRealPath.get}"
-            override def color: Color = Color.Grey
-          }
-        }
-      case _ =>
-    }
-  }
-
-  override def onHoverEnter(): Unit = {
-    super.onHoverEnter()
-
-    // Showing tooltip only if item is present in slot
-    if (item.isEmpty)
-      return
-
-    tooltip = Some(new Tooltip())
-
-    val inner: Widget = new Widget {
-      override val layout = new LinearLayout(this, orientation = Orientation.Vertical)
-    }
-
-    tooltipChildrenAdder(inner)
-
-    tooltip.get.children :+= new PaddingBox(inner, Padding2D.equal(5))
-
-    root.get.tooltipPool.addTooltip(tooltip.get)
-  }
-
-  override def onHoverLeave(): Unit = {
-    super.onHoverLeave()
-
-    tooltip.foreach(root.get.tooltipPool.closeTooltip(_))
-  }
-
-  def reloadItem(): Unit = _item = owner.get.map(_.asInstanceOf[T])
-}
diff --git a/src/main/scala/ocelot/desktop/ui/widget/slot/ItemChooser.scala b/src/main/scala/ocelot/desktop/ui/widget/slot/ItemChooser.scala
index af15bdf..d024b2c 100644
--- a/src/main/scala/ocelot/desktop/ui/widget/slot/ItemChooser.scala
+++ b/src/main/scala/ocelot/desktop/ui/widget/slot/ItemChooser.scala
@@ -3,7 +3,6 @@ package ocelot.desktop.ui.widget.slot
 import ocelot.desktop.inventory.item._
 import ocelot.desktop.inventory.{Item, ItemFactory}
 import ocelot.desktop.ui.widget.contextmenu.{ContextMenu, ContextMenuEntry, ContextMenuSubmenu}
-import ocelot.desktop.ui.widget.slot.reimpl.SlotWidget
 import totoro.ocelot.brain.loot.Loot
 import totoro.ocelot.brain.util.ExtendedTier.ExtendedTier
 import totoro.ocelot.brain.util.{ExtendedTier, Tier}
diff --git a/src/main/scala/ocelot/desktop/ui/widget/slot/MemorySlot.scala b/src/main/scala/ocelot/desktop/ui/widget/slot/MemorySlot.scala
deleted file mode 100644
index bb36798..0000000
--- a/src/main/scala/ocelot/desktop/ui/widget/slot/MemorySlot.scala
+++ /dev/null
@@ -1,39 +0,0 @@
-package ocelot.desktop.ui.widget.slot
-
-import ocelot.desktop.color.Color
-import ocelot.desktop.graphics.{IconDef, Icons}
-import ocelot.desktop.ui.widget.contextmenu.{ContextMenu, ContextMenuEntry}
-import totoro.ocelot.brain.entity.Memory
-import totoro.ocelot.brain.entity.traits.{Inventory, Tiered}
-import totoro.ocelot.brain.util.Tier.Tier
-import totoro.ocelot.brain.util.{ExtendedTier, Tier}
-
-class MemorySlot(owner: Inventory#Slot, val tier: Tier) extends InventorySlot[Memory](owner) {
-  override def itemIcon: Option[IconDef] = item.map(_.memoryTier).map(Icons.Memory)
-
-  override def icon: IconDef = Icons.MemoryIcon
-  override def tierIcon: Option[IconDef] = Some(Icons.TierIcon(tier))
-
-  override def fillLmbMenu(menu: ContextMenu): Unit = {
-    for (tier <- ExtendedTier.One to ExtendedTier.ThreeHalf if this.tier >= tier.toTier) {
-      menu.addEntry(new ContextMenuEntry(s"RAM (${tier.label})",
-        () => item = new Memory(tier),
-        icon = Some(Icons.Memory(tier))))
-    }
-  }
-
-  override def lmbMenuEnabled: Boolean = true
-
-  override def tooltipLine1Color: Color = item.get match {
-    case tiered: Tiered => tiered.tier match {
-      case Tier.One => Color.White
-      case Tier.Two => Color.Yellow
-      case Tier.Three => Color.Cyan
-      case _ => Color.Cyan
-    }
-
-    case _ => Color.White
-  }
-
-  override def tooltipLine1Text: String = getTooltipDeviceInfoText(item.get, item.get.memoryTier.label)
-}
diff --git a/src/main/scala/ocelot/desktop/ui/widget/slot/reimpl/MemorySlotWidget.scala b/src/main/scala/ocelot/desktop/ui/widget/slot/MemorySlotWidget.scala
similarity index 89%
rename from src/main/scala/ocelot/desktop/ui/widget/slot/reimpl/MemorySlotWidget.scala
rename to src/main/scala/ocelot/desktop/ui/widget/slot/MemorySlotWidget.scala
index dc4583a..a94379d 100644
--- a/src/main/scala/ocelot/desktop/ui/widget/slot/reimpl/MemorySlotWidget.scala
+++ b/src/main/scala/ocelot/desktop/ui/widget/slot/MemorySlotWidget.scala
@@ -1,4 +1,4 @@
-package ocelot.desktop.ui.widget.slot.reimpl
+package ocelot.desktop.ui.widget.slot
 
 import ocelot.desktop.graphics.{IconDef, Icons}
 import ocelot.desktop.inventory.Inventory
diff --git a/src/main/scala/ocelot/desktop/ui/widget/slot/SlotWidget.scala b/src/main/scala/ocelot/desktop/ui/widget/slot/SlotWidget.scala
index f89ad9f..b0f551a 100644
--- a/src/main/scala/ocelot/desktop/ui/widget/slot/SlotWidget.scala
+++ b/src/main/scala/ocelot/desktop/ui/widget/slot/SlotWidget.scala
@@ -2,84 +2,151 @@ package ocelot.desktop.ui.widget.slot
 
 import ocelot.desktop.audio.SoundSources
 import ocelot.desktop.geometry.Size2D
-import ocelot.desktop.graphics.{Graphics, IconDef}
+import ocelot.desktop.graphics.{Graphics, IconDef, Icons}
+import ocelot.desktop.inventory.{Inventory, Item, ItemFactory}
 import ocelot.desktop.ui.event.handlers.{ClickHandler, HoverHandler}
 import ocelot.desktop.ui.event.{ClickEvent, HoverEvent, MouseEvent}
 import ocelot.desktop.ui.widget.Widget
 import ocelot.desktop.ui.widget.contextmenu.{ContextMenu, ContextMenuEntry}
+import ocelot.desktop.ui.widget.tooltip.Tooltip
+import totoro.ocelot.brain.util.Tier
+import totoro.ocelot.brain.util.Tier.Tier
 
-abstract class SlotWidget[T] extends Widget with ClickHandler with HoverHandler {
-  def icon: IconDef
+import scala.math.Ordering.Implicits.infixOrderingOps
+import scala.reflect.ClassTag
 
-  def tierIcon: Option[IconDef] = None
+class SlotWidget[I <: Item](private val slot: Inventory#Slot)(implicit slotItemTag: ClassTag[I])
+  extends Widget
+    with ClickHandler
+    with HoverHandler {
 
-  def itemIcon: Option[IconDef] = None
+  slotWidget =>
 
-  def onRemoved(item: T): Unit = {}
+  // NOTE: this must remain as a separate object
+  // (i. e. don't you dare inline it into the addObserver call below):
+  // this is the only strong reference to the observer
+  private val observer = new Inventory.SlotObserver {
+    override def onItemAdded(): Unit = {
+      slotWidget.onItemAdded()
+    }
 
-  def onAdded(item: T): Unit = {}
+    override def onItemRemoved(removedItem: Item, replacedBy: Option[Item]): Unit = {
+      slotWidget.onItemRemoved(removedItem.asInstanceOf[I], replacedBy.map(_.asInstanceOf[I]))
+    }
 
-  def fillLmbMenu(menu: ContextMenu): Unit = {}
-
-  def fillRmbMenu(menu: ContextMenu): Unit = {
-    menu.addEntry(new ContextMenuEntry("Remove", () => item = None, sound = SoundSources.InterfaceClickLow))
+    override def onItemSpecificEvent(payload: AnyRef): Unit = {
+      slotWidget.onItemSpecificEvent(payload)
+    }
   }
 
-  def lmbMenuEnabled: Boolean = false
+  slot.addObserver(observer)
 
-  def rmbMenuEnabled: Boolean = _item.isDefined
-
-  final var _item: Option[T] = None
-
-  final def item_=(v: Option[T]): Unit = {
-    if (_item.isDefined)
-      onRemoved(_item.get)
-
-    _item = v
-
-    if (v.isDefined)
-      onAdded(v.get)
+  def dispose(): Unit = {
+    closeTooltip()
+    slot.removeObserver(observer)
   }
 
-  final def item_=(v: T): Unit = item = Some(v)
+  def ghostIcon: Option[IconDef] = None
 
-  final def item: Option[T] = _item
+  def slotTier: Option[Tier] = None
 
-  final override def minimumSize: Size2D = Size2D(36, 36)
-  final override def maximumSize: Size2D = minimumSize
+  def tierIcon: Option[IconDef] = slotTier.map(Icons.TierIcon)
 
-  final override def receiveMouseEvents: Boolean = true
+  def itemIcon: Option[IconDef] = item.map(_.icon)
+
+  def item: Option[I] = slot.get.map(_.asInstanceOf[I])
+
+  def item_=(item: Option[I]): Unit = {
+    slot.set(item.map(_.asInstanceOf[slot.inventory.I]))
+  }
+
+  def item_=(item: I): Unit = {
+    slot.put(item.asInstanceOf[slot.inventory.I])
+  }
+
+  def isItemAccepted(factory: ItemFactory): Boolean = {
+    // yes, you can compare Options. isn't it nice?
+    slotItemTag.runtimeClass.isAssignableFrom(factory.itemClass) && factory.tier.map(_ min Tier.Three) <= slotTier
+  }
+
+  protected def onItemAdded(): Unit = {}
+
+  protected def onItemRemoved(removedItem: I, replacedBy: Option[I]): Unit = {
+    closeTooltip()
+  }
+
+  protected def onItemSpecificEvent(payload: AnyRef): Unit = {}
+
+  final override val minimumSize, maximumSize = Size2D(36, 36)
+  final override val receiveMouseEvents: Boolean = true
+
+  protected def lmbMenuEnabled: Boolean = true
+
+  protected def rmbMenuEnabled: Boolean = item.nonEmpty
+
+  protected def fillRmbMenu(menu: ContextMenu): Unit = {
+    for (item <- item) {
+      item.fillRmbMenu(menu)
+      menu.addEntry(
+        ContextMenuEntry("Remove", sound = SoundSources.InterfaceClickLow) {
+          slot.remove()
+        },
+      )
+    }
+  }
+
+  private var _tooltip: Option[Tooltip] = None
+
+  def onHoverEnter(): Unit = {
+    for (item <- item) {
+      // just in case
+      //    closeTooltip()
+
+      val tooltip = item.tooltip
+      _tooltip = Some(tooltip)
+      root.get.tooltipPool.addTooltip(tooltip)
+    }
+  }
+
+  def onHoverLeave(): Unit = {
+    closeTooltip()
+  }
+
+  private def closeTooltip(): Unit = {
+    for (tooltip <- _tooltip) {
+      root.get.tooltipPool.closeTooltip(tooltip)
+    }
+  }
 
   eventHandlers += {
     case ClickEvent(MouseEvent.Button.Left, _) if lmbMenuEnabled =>
-      val menu = new ContextMenu
-      fillLmbMenu(menu)
-      root.get.contextMenus.open(menu)
+      root.get.contextMenus.open(new ItemChooser(this))
+
     case ClickEvent(MouseEvent.Button.Right, _) if rmbMenuEnabled =>
       val menu = new ContextMenu
       fillRmbMenu(menu)
       root.get.contextMenus.open(menu)
-    case HoverEvent(state) =>
-      if (state == HoverEvent.State.Enter)
-        onHoverEnter()
-      else
-        onHoverLeave()
+
+    case HoverEvent(HoverEvent.State.Enter) => onHoverEnter()
+    case HoverEvent(HoverEvent.State.Leave) => onHoverLeave()
   }
 
-  def onHoverEnter(): Unit = {}
-
-  def onHoverLeave(): Unit = {}
-
   final override def draw(g: Graphics): Unit = {
     g.sprite("EmptySlot", bounds)
 
     val iconBounds = bounds.inflate(-2)
 
-    if (itemIcon.isDefined) {
-      g.sprite(itemIcon.get, iconBounds)
-    } else {
-      if (tierIcon.isDefined) g.sprite(tierIcon.get, iconBounds)
-      g.sprite(icon, iconBounds)
+    itemIcon match {
+      case Some(itemIcon) => g.sprite(itemIcon, iconBounds)
+
+      case None =>
+        for (tierIcon <- tierIcon) {
+          g.sprite(tierIcon, iconBounds)
+        }
+
+        for (ghostIcon <- ghostIcon) {
+          g.sprite(ghostIcon, iconBounds)
+        }
     }
   }
 }
diff --git a/src/main/scala/ocelot/desktop/ui/widget/slot/reimpl/SlotWidget.scala b/src/main/scala/ocelot/desktop/ui/widget/slot/reimpl/SlotWidget.scala
deleted file mode 100644
index 28e5ceb..0000000
--- a/src/main/scala/ocelot/desktop/ui/widget/slot/reimpl/SlotWidget.scala
+++ /dev/null
@@ -1,153 +0,0 @@
-package ocelot.desktop.ui.widget.slot.reimpl
-
-import ocelot.desktop.audio.SoundSources
-import ocelot.desktop.geometry.Size2D
-import ocelot.desktop.graphics.{Graphics, IconDef, Icons}
-import ocelot.desktop.inventory.{Inventory, Item, ItemFactory}
-import ocelot.desktop.ui.event.handlers.{ClickHandler, HoverHandler}
-import ocelot.desktop.ui.event.{ClickEvent, HoverEvent, MouseEvent}
-import ocelot.desktop.ui.widget.Widget
-import ocelot.desktop.ui.widget.contextmenu.{ContextMenu, ContextMenuEntry}
-import ocelot.desktop.ui.widget.slot.ItemChooser
-import ocelot.desktop.ui.widget.tooltip.Tooltip
-import totoro.ocelot.brain.util.Tier
-import totoro.ocelot.brain.util.Tier.Tier
-
-import scala.math.Ordering.Implicits.infixOrderingOps
-import scala.reflect.ClassTag
-
-class SlotWidget[I <: Item](private val slot: Inventory#Slot)(implicit slotItemTag: ClassTag[I])
-  extends Widget
-    with ClickHandler
-    with HoverHandler {
-
-  slotWidget =>
-
-  // NOTE: this must remain as a separate object
-  // (i. e. don't you dare inline it into the addObserver call below):
-  // this is the only strong reference to the observer
-  private val observer = new Inventory.SlotObserver {
-    override def onItemAdded(): Unit = {
-      slotWidget.onItemAdded()
-    }
-
-    override def onItemRemoved(removedItem: Item, replacedBy: Option[Item]): Unit = {
-      slotWidget.onItemRemoved(removedItem.asInstanceOf[I], replacedBy.map(_.asInstanceOf[I]))
-    }
-
-    override def onItemSpecificEvent(payload: AnyRef): Unit = {
-      slotWidget.onItemSpecificEvent(payload)
-    }
-  }
-
-  slot.addObserver(observer)
-
-  def dispose(): Unit = {
-    closeTooltip()
-    slot.removeObserver(observer)
-  }
-
-  def ghostIcon: Option[IconDef] = None
-
-  def slotTier: Option[Tier] = None
-
-  def tierIcon: Option[IconDef] = slotTier.map(Icons.TierIcon)
-
-  def itemIcon: Option[IconDef] = item.map(_.icon)
-
-  def item: Option[I] = slot.get.map(_.asInstanceOf[I])
-
-  def item_=(item: Option[I]): Unit = {
-    slot.set(item.map(_.asInstanceOf[slot.inventory.I]))
-  }
-
-  def item_=(item: I): Unit = {
-    slot.put(item.asInstanceOf[slot.inventory.I])
-  }
-
-  def isItemAccepted(factory: ItemFactory): Boolean = {
-    // yes, you can compare Options. isn't it nice?
-    slotItemTag.runtimeClass.isAssignableFrom(factory.itemClass) && factory.tier.map(_ min Tier.Three) <= slotTier
-  }
-
-  protected def onItemAdded(): Unit = {}
-
-  protected def onItemRemoved(removedItem: I, replacedBy: Option[I]): Unit = {
-    closeTooltip()
-  }
-
-  protected def onItemSpecificEvent(payload: AnyRef): Unit = {}
-
-  final override val minimumSize, maximumSize = Size2D(36, 36)
-  final override val receiveMouseEvents: Boolean = true
-
-  protected def lmbMenuEnabled: Boolean = true
-
-  protected def rmbMenuEnabled: Boolean = item.nonEmpty
-
-  protected def fillRmbMenu(menu: ContextMenu): Unit = {
-    for (item <- item) {
-      item.fillRmbMenu(menu)
-      menu.addEntry(
-        ContextMenuEntry("Remove", sound = SoundSources.InterfaceClickLow) {
-          slot.remove()
-        },
-      )
-    }
-  }
-
-  private var _tooltip: Option[Tooltip] = None
-
-  def onHoverEnter(): Unit = {
-    for (item <- item) {
-      // just in case
-      //    closeTooltip()
-
-      val tooltip = item.tooltip
-      _tooltip = Some(tooltip)
-      root.get.tooltipPool.addTooltip(tooltip)
-    }
-  }
-
-  def onHoverLeave(): Unit = {
-    closeTooltip()
-  }
-
-  private def closeTooltip(): Unit = {
-    for (tooltip <- _tooltip) {
-      root.get.tooltipPool.closeTooltip(tooltip)
-    }
-  }
-
-  eventHandlers += {
-    case ClickEvent(MouseEvent.Button.Left, _) if lmbMenuEnabled =>
-      root.get.contextMenus.open(new ItemChooser(this))
-
-    case ClickEvent(MouseEvent.Button.Right, _) if rmbMenuEnabled =>
-      val menu = new ContextMenu
-      fillRmbMenu(menu)
-      root.get.contextMenus.open(menu)
-
-    case HoverEvent(HoverEvent.State.Enter) => onHoverEnter()
-    case HoverEvent(HoverEvent.State.Leave) => onHoverLeave()
-  }
-
-  final override def draw(g: Graphics): Unit = {
-    g.sprite("EmptySlot", bounds)
-
-    val iconBounds = bounds.inflate(-2)
-
-    itemIcon match {
-      case Some(itemIcon) => g.sprite(itemIcon, iconBounds)
-
-      case None =>
-        for (tierIcon <- tierIcon) {
-          g.sprite(tierIcon, iconBounds)
-        }
-
-        for (ghostIcon <- ghostIcon) {
-          g.sprite(ghostIcon, iconBounds)
-        }
-    }
-  }
-}