diff --git a/README.md b/README.md
index b18d2e8..5ec4cd2 100644
--- a/README.md
+++ b/README.md
@@ -1,8 +1,7 @@
 # Mindustry Kotlin Ui Lib
-An utility library for mindustry mods.
+An ui library for mindustry mods.
 
-Provides a set of inline extension functions that allow you to build mindustry ui in an idiomatic & optimized way.
-Also provides some utility extension functions that arc lacks.
+Provides some useful stuff, such as inline ui construction functions, utility functions, new ui classes, etc.
 
 May not be compatible with other (non-mindustry) arc projects.
 
@@ -14,6 +13,8 @@ In your `build.gradle` file:
 (it should already be here if you're using the official mod template)
 * add `implementation "com.github.mnemotechnician:MKUI:TAG"` (replace `TAG` with the the latest tag in this repo) to the `dependencies {}` block
 
+Note: you can go to the releases tab and use the name of the latest release as the tag. These names usually start with `snapshot-`.
+
 example of a `build.gradle` file:
 ```groovy
 //... some other code
diff --git a/lib/src/main/kotlin/com/github/mnemotechnician/mkui/ElementUtil.kt b/lib/src/main/kotlin/com/github/mnemotechnician/mkui/ElementUtil.kt
index e05af3d..a2e1198 100644
--- a/lib/src/main/kotlin/com/github/mnemotechnician/mkui/ElementUtil.kt
+++ b/lib/src/main/kotlin/com/github/mnemotechnician/mkui/ElementUtil.kt
@@ -4,8 +4,5 @@ import arc.scene.*
 import arc.scene.ui.*
 import arc.scene.ui.layout.*
 
-/** casts the element to the specified class */
-inline fun <reified T> Element.to() = this as T;
-
 /** casts the element to the specified class or returns null if it's not an instance of this class */
-inline fun <reified T> Element.toOrNull() = if (this is T) this else null;
\ No newline at end of file
+inline fun <reified T> Element.asOrNull() = if (this is T) this else null;
\ No newline at end of file
diff --git a/lib/src/main/kotlin/com/github/mnemotechnician/mkui/Layout.kt b/lib/src/main/kotlin/com/github/mnemotechnician/mkui/Layout.kt
index cf88d80..e3d8784 100644
--- a/lib/src/main/kotlin/com/github/mnemotechnician/mkui/Layout.kt
+++ b/lib/src/main/kotlin/com/github/mnemotechnician/mkui/Layout.kt
@@ -34,16 +34,18 @@ inline fun Table.addTable(background: Drawable = Styles.none, constructor: Table
 }
 
 /** Adds a constant label to the table and returns the created cell */
-inline fun Table.addLabel(text: String, style: Label.LabelStyle = Styles.defaultLabel, wrap: Boolean = false): Cell<Label> {
+inline fun Table.addLabel(text: String, style: Label.LabelStyle = Styles.defaultLabel, wrap: Boolean = false, ellipsis: String? = null): Cell<Label> {
 	val label = Label(text, style)
 	label.setWrap(wrap)
+	label.setEllipsis(ellipsis)
 	return add(label)
 }
 
 /** Adds a dynamic label to the table and returns the created cell */
-inline fun Table.addLabel(crossinline provider: () -> String, style: Label.LabelStyle = Styles.defaultLabel, wrap: Boolean = true): Cell<Label> {
+inline fun Table.addLabel(crossinline provider: () -> String, style: Label.LabelStyle = Styles.defaultLabel, wrap: Boolean = true, ellipsis: String? = null): Cell<Label> {
 	val label = Label("", style)
 	label.setWrap(wrap)
+	label.setEllipsis(ellipsis)
 	label.update { label.setText(provider()) }
 	return add(label)
 }
diff --git a/lib/src/main/kotlin/com/github/mnemotechnician/mkui/windows/Window.kt b/lib/src/main/kotlin/com/github/mnemotechnician/mkui/windows/Window.kt
new file mode 100644
index 0000000..5788e3a
--- /dev/null
+++ b/lib/src/main/kotlin/com/github/mnemotechnician/mkui/windows/Window.kt
@@ -0,0 +1,35 @@
+package com.github.mnemotechnician.mkui.windows
+
+import arc.scene.ui.layout.*
+import com.github.mnemotechnician.mkui.*
+
+/** A class that represents a floating on-screen window that the user can drag and interact with. */
+abstract class Window {
+	
+	/** The table this window is assigned to. Initialized when the window is created. */
+	lateinit var table: Table
+		internal set
+	
+	/** Whether this window is collapsed by the user */
+	var isCollapsed = false
+		internal set
+	
+	/** Name of this window displayed in the top bar */
+	open var name = "unnamed window"
+	
+	/** Called when the window is being created. At this point the window has a Table assigned to it, which should be inflated by this function. */
+	abstract fun onCreate()
+	
+	/** The window has already been created, this function is called on every tick. It should avoid modifying the table: that can cause a performance loss.  */
+	fun onUpdate() {
+	}
+	
+	/** Called whenever the window is being dragged by the user */
+	fun onDrag() {
+	}
+	
+	/** Called whenever this window is being toggled by the user */
+	fun onToggle(collapsed: Boolean) {
+	}
+	
+}
\ No newline at end of file
diff --git a/lib/src/main/kotlin/com/github/mnemotechnician/mkui/windows/WindowManager.kt b/lib/src/main/kotlin/com/github/mnemotechnician/mkui/windows/WindowManager.kt
new file mode 100644
index 0000000..820ce4a
--- /dev/null
+++ b/lib/src/main/kotlin/com/github/mnemotechnician/mkui/windows/WindowManager.kt
@@ -0,0 +1,82 @@
+package com.github.mnemotechnician.mkui.windows
+
+import arc.*
+import arc.util.*
+import arc.struct.*
+import arc.scene.event.*
+import arc.scene.ui.*
+import arc.scene.ui.layout.*
+import mindustry.*
+import mindustry.ui.*
+import mindustry.game.*
+import com.github.mnemotechnician.mkui.*
+
+/** Manages all windows displayed on the screen. Lazily initialized. */
+object WindowManager {
+	
+	internal val windowGroup = WidgetGroup()
+	val windows = Seq<Window>()
+	
+	init {
+		Events.run(EventType.ClientLoadEvent::class.java) {
+			windowGroup.setFillParent(true)
+			windowGroup.touchable = Touchable.childrenOnly;
+			Core.scene.add(windowGroup)
+			
+			Log.info("[blue]Initialized the window manager")
+		}
+		
+		Events.run(EventType.Trigger.update) {
+			windows.each { it.onUpdate() }
+		}
+	}
+	
+	/** Constructs & registers the window */
+	fun createWindow(window: Window) {
+		val windowTable = Table(Styles.black5).apply {
+			//tob bar — name, buttons and also a way to drag the table
+			addTable(Styles.black3) {
+				addLabel({ window.name }, ellipsis = "...").fillX()
+				//collapse/show
+				textToggle("-", Styles.togglet) {
+					childAs<Label>(0).setText(if (it) "[accent]=" else "[accent]-")
+					
+					window.isCollapsed = it
+					window.onToggle(it)
+					
+					TODO("collapsing is not yet implemented")
+				}
+				
+				dragged { x, y ->
+					window.onDrag()
+					TODO("dragging is not yet implemented")
+				}
+			}.fillX().marginBottom(5f)
+			
+			row()
+			
+			//main container
+			addTable {
+				window.table = this
+				window.onCreate()
+			}
+		}
+		
+		windowGroup.addChild(windowTable)
+		windowTable.setPosition(windowGroup.width / 2, windowGroup.height / 2)
+		
+		windows.add(window)
+	}
+	
+	/** Creates an anonymous window. Such a window won't be able to receive onUpdate, onToggle, onDrag events. */
+	inline fun createWindow(name: String, crossinline constructor: Table.() -> Unit) {
+		createWindow(object : Window() {
+			override var name = name
+			
+			override fun onCreate() {
+				table.constructor()
+			}
+		})
+	}
+	
+}
\ No newline at end of file