diff --git a/Package/embedded/Miscs/SkinDyeMaterial.tres b/Package/embedded/Miscs/SkinDyeMaterial.tres
new file mode 100644
index 0000000..fb71dca
--- /dev/null
+++ b/Package/embedded/Miscs/SkinDyeMaterial.tres
@@ -0,0 +1,9 @@
+[gd_resource type="ShaderMaterial" load_steps=2 format=3 uid="uid://cegp8r6cj3jqj"]
+
+[ext_resource type="Shader" path="res://embedded/Miscs/SkinDyeShader.gdshader" id="1_31kjt"]
+
+[resource]
+shader = ExtResource("1_31kjt")
+shader_parameter/old_palette = null
+shader_parameter/new_palette = null
+shader_parameter/glowing = null
diff --git a/Package/embedded/Miscs/SkinDyeShader.gdshader b/Package/embedded/Miscs/SkinDyeShader.gdshader
new file mode 100644
index 0000000..71b8305
--- /dev/null
+++ b/Package/embedded/Miscs/SkinDyeShader.gdshader
@@ -0,0 +1,50 @@
+shader_type canvas_item;
+
+uniform vec4 old_palette[32];
+uniform vec4 new_palette[32];
+uniform int glowing[32];
+const float pe = 0.004;
+
+struct DyeResult{
+	vec4 color;
+	int index;
+};
+
+DyeResult dye(vec4 color){
+	for(int i = 0; i<32; i++){
+		if(distance(color, old_palette[i]) < pe){
+			return DyeResult(new_palette[i], i);
+		}
+	}
+	return DyeResult(color, -1);
+}
+
+vec4 rgb2hsv(vec4 inp){
+	vec3 c = inp.rgb;
+	vec4 K = vec4(0.0, -1.0 / 3.0, 2.0 / 3.0, -1.0);
+	vec4 p = mix(vec4(c.bg, K.wz), vec4(c.gb, K.xy), step(c.b, c.g));
+	vec4 q = mix(vec4(p.xyw, c.r), vec4(c.r, p.yzx), step(p.x, c.r));
+	float d = q.x - min(q.w, q.y);
+	float e = 1.0e-10;
+	return vec4(abs(q.z + (q.w - q.y) / (6.0 * d + e)), d / (q.x + e), q.x, inp.a);
+}
+
+vec4 hsv2rgb(vec4 inp){
+	vec3 c = inp.xyz;
+	vec4 K = vec4(1.0, 2.0 / 3.0, 1.0 / 3.0, 3.0);
+	vec3 p = abs(fract(c.xxx + K.xyz) * 6.0 - K.www);
+	return vec4( c.z * mix(K.xxx, clamp(p - K.xxx, 0.0, 1.0), c.y), inp.a);
+}
+
+void fragment() {
+	DyeResult dy = dye(texture(TEXTURE, UV));
+	if(dy.index != -1 && glowing[dy.index] == 1){
+		vec4 hsv = rgb2hsv(dy.color);
+		hsv.z += sin(TIME*1.5)*0.1;
+		COLOR = hsv2rgb(hsv);
+	}
+	else{
+		COLOR = dy.color;
+	}
+
+}
diff --git a/Package/embedded/Patches/GlobalRegistry.p.cs b/Package/embedded/Patches/GlobalRegistry.p.cs
index 0d6d66e..965c79f 100644
--- a/Package/embedded/Patches/GlobalRegistry.p.cs
+++ b/Package/embedded/Patches/GlobalRegistry.p.cs
@@ -8,6 +8,7 @@ using Polonium.Attributes;
 using Polonium;
 using Polonium.Interfaces;
 using System.Collections.Generic;
+using Polonium.Agents;
 
 // ReSharper disable once CheckNamespace
 public static partial class GlobalRegistry
@@ -28,21 +29,18 @@ public static partial class GlobalRegistry
 
     public static class Asset<T> where T : Node
     {
-        private static readonly Queue<T> Pool = new();
         // ReSharper disable once StaticMemberInGenericType
         // ReSharper disable once UnusedAutoPropertyAccessor.Global
-        public static PackedScene Scene { get; set; }
-        private static T Instance => Scene.Instantiate<T>();
-        public static T Get() => Pool.Count > 0 ? Pool.Dequeue() : Instance;
-
-        public static void Return(T obj)
-        {
-            if(Pool.Count < 10)
-                Pool.Enqueue(obj);
-            else
-                obj.QueueFree();
-        }
+        public static PackedScene Scene => PoloniumRegistry.Asset<T>.Scene;
+        public static T Get() => PoloniumRegistry.Asset<T>.Get();
+        public static void Return(T obj) => PoloniumRegistry.Asset<T>.Return(obj);
     }
+
+    public static partial class Action<TAction> where TAction : AgentAction
+    {
+        public static string Name => PoloniumRegistry.Action<TAction>.Name;
+    }
+
     public static PoloniumRegistry PoloniumRegistry => PoloniumRegistry.Instance;
     public static bool Paused { get; set; }
     public static void Prepare() => PoloniumRegistry.Prepare();
diff --git a/Package/embedded/Patches/SkinPaletteRegister.p.cs b/Package/embedded/Patches/SkinPaletteRegister.p.cs
new file mode 100644
index 0000000..4f4ba35
--- /dev/null
+++ b/Package/embedded/Patches/SkinPaletteRegister.p.cs
@@ -0,0 +1,151 @@
+using System.Reflection;
+using Godot;
+using Polonium;
+using Polonium.Attributes;
+using Polonium.SkinManagers.Generic;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Skin = Polonium.SkinManagers.Skin;
+
+[AutoRegister]
+// ReSharper disable once CheckNamespace
+public static class SkinPaletteRegister
+{
+    public static void Register()
+    {
+        Type gr = typeof(PoloniumRegistry.SkinRegistry<>);
+        Assembly assembly = Assembly.GetExecutingAssembly();
+        IEnumerable<Type> skinTypes = assembly
+            .GetTypes()
+            .Where(t => t.IsSubclassOf(typeof(Skin)) && !t.IsAbstract)
+            .Where(t => t.GetCustomAttributes(typeof(SkinInfo), true).Any());
+
+        foreach (Type skinType in skinTypes)
+        {
+            Type ist = gr.MakeGenericType(skinType);
+            string pth = skinType.GetCustomAttribute<SkinInfo>()!.Path;
+            int k = skinType.GetCustomAttribute<SkinInfo>()!.Roots;
+            
+            PropertyInfo paletteRoots = ist.GetProperty("PaletteRoots");
+            PropertyInfo paletteMap = ist.GetProperty("PaletteMap");
+            Color[] roots;
+            Dictionary<Color, Color[]> map;
+            if (IsAutoPalette(skinType))
+                (roots, map) = KMean(ExtractColors(pth), k);
+            else
+                (roots, map) = GetPalette(pth);
+            paletteRoots!.SetValue(null, roots);
+            paletteMap!.SetValue(null, map);
+        }
+    }
+    private static bool IsAutoPalette(Type type)
+    {
+        Type x = type;
+        while (x != typeof(object) && x != null)
+        {
+            if (x.IsGenericType && x.GetGenericTypeDefinition() == typeof(AutoPaletteSkin<>))
+                return true;
+            x = x.BaseType;
+        }
+
+        return false;
+    }
+
+    private static HashSet<Color> ExtractColors(string path)
+    {
+        HashSet<Color> colors = new();
+        CompressedTexture2D texture = ResourceLoader.Load<CompressedTexture2D>(path);
+        Image image = texture.GetImage();
+        for (int x = 0; x < image.GetWidth(); x++)
+        for (int y = 0; y < image.GetHeight(); y++)
+        {
+            Color px = image.GetPixel(x, y);
+            if (px.A8 > 0)
+                colors.Add(px);
+        }
+
+        return colors;
+    }
+    
+    private static (Color[], Dictionary<Color, Color[]>) GetPalette(string path)
+    {
+        //HashSet<Color> colors = ExtractColors(path);
+        
+        HashSet<Color> colors = new();
+        Dictionary<Color, HashSet<Color>> map = new();
+        
+        CompressedTexture2D texture = ResourceLoader.Load<CompressedTexture2D>(path);
+        Image image = texture.GetImage();
+        int height = image.GetHeight();
+        int width = image.GetWidth();
+        for (int y = height - 32; y < height; y++)
+        {
+            Color px0 = image.GetPixel(width-32, y);
+            if (px0.A8 == 0)
+                break;
+            colors.Add(px0);
+            map[px0] = new HashSet<Color> { px0 };
+            for (int x = width - 32; x < width; x++)
+            {
+                Color px = image.GetPixel(x, y);
+                if (px.A8 == 0)
+                    break;
+                map[px0].Add(px);
+            }
+        }
+
+        return (colors.ToArray(), map.ToDictionary(p => p.Key, p => p.Value.ToArray()));
+    }
+    private static (Color[], Dictionary<Color, Color[]>) KMean(HashSet<Color> colors, int k)
+    {
+        var colorPoints = colors.ToList();
+        var random = new Random();
+        Color[] centroids = colorPoints.OrderBy(x => random.Next()).Take(k).ToArray();
+    
+        bool hasConverged = false;
+        Dictionary<Color, List<Color>> clusters = new();
+
+        while (!hasConverged)
+        {
+            clusters = centroids.ToDictionary(c => c, c => new List<Color>());
+            foreach (Color color in colorPoints)
+            {
+                Color nearestCentroid = centroids.OrderBy(c => c.DistanceTo(color)).First();
+                clusters[nearestCentroid].Add(color);
+            }
+            hasConverged = true;
+            for (int i = 0; i < centroids.Length; i++)
+            {
+                if (clusters[centroids[i]].Count == 0) continue;
+
+                Color newCentroid = clusters[centroids[i]].AverageColor();
+                if (!newCentroid.Equals(centroids[i]))
+                {
+                    centroids[i] = newCentroid;
+                    hasConverged = false;
+                }
+            }
+        }
+
+        Dictionary<Color, Color[]> resultMap = clusters.ToDictionary(
+            kvp => kvp.Key,
+            kvp => kvp.Value.ToArray()
+        );
+
+        return (centroids, resultMap);
+    }
+
+    private static Vector4 ToVector(this Color a) => new(a.R, a.G, a.B, a.A);
+    private static double DistanceTo(this Color a, Color b) => a.ToVector().DistanceTo(b.ToVector());
+    private static Color ToColor(this Vector4 a) => new Color(a.X, a.Y, a.Z, a.W);
+
+    private static Color AverageColor(this IEnumerable<Color> a)
+    {
+        Vector4[] aa = a.Select(x => x.ToVector()).ToArray();
+        Vector4 res = Vector4.Zero;
+        foreach (Vector4 c in aa)
+            res += c;
+        return (res / aa.Length).ToColor();
+    }
+}
\ No newline at end of file
diff --git a/src/Agents/ActionSet.cs b/src/Agents/ActionSet.cs
index 2efbbda..7fb5f2e 100644
--- a/src/Agents/ActionSet.cs
+++ b/src/Agents/ActionSet.cs
@@ -5,9 +5,9 @@ namespace Polonium.Agents;
 
 public abstract partial class ActionSet : Node
 {
-    [Signal]
-    public delegate void ActionSubmittedEventHandler(ActionBody action);
-    
+
+    public HashSet<AgentAction.Template> Templates { get; set; } = new();
+    public virtual void Learn(AgentAction.Template template) => Templates.Add(template);
     
 }
 
diff --git a/src/Agents/Agent.cs b/src/Agents/Agent.cs
index 471f87a..da84ea1 100644
--- a/src/Agents/Agent.cs
+++ b/src/Agents/Agent.cs
@@ -15,7 +15,6 @@ public abstract partial class Agent : Node
     {
         Knowledge = GetNode<Knowledge>("Knowledge");
         ActionSet = GetNode<ActionSet>("ActionSet");
-        ActionSet.ActionSubmitted += ExecuteAction;
     }
 
     public sealed override void _Ready()
@@ -34,6 +33,14 @@ public abstract partial class Agent : Node
         header.SetSender(this);
         EmitSignalActionExecuted(header, actionBody);
     }
-    
-    
+
+    public void Act<TAction>(AgentAction.Parameter parameter)
+        where TAction : AgentAction
+    {
+        AgentAction.Template template = ActionSet.Templates
+            .FirstOrDefault(t => t.ActionName == PoloniumRegistry.Action<TAction>.Name);
+        
+    }
+
+
 }
diff --git a/src/Agents/AgentAction.cs b/src/Agents/AgentAction.cs
new file mode 100644
index 0000000..b8f70e4
--- /dev/null
+++ b/src/Agents/AgentAction.cs
@@ -0,0 +1,60 @@
+using Godot;
+
+namespace Polonium.Agents;
+
+public abstract partial class AgentAction : Node
+{
+    public abstract class Parameter
+    {
+    }
+
+    public virtual void SetParameter(Parameter p)
+    {
+    }
+
+    public abstract void Execute();
+
+    public abstract void Finish();
+
+    public abstract void Reset();
+
+    public abstract class Template : PoloniumTemplate<AgentAction>
+    {
+        public abstract string ActionName { get; }
+        public abstract Template Copy { get; }
+    }
+
+    public class Template<TAction> : Template
+        where TAction : AgentAction
+    {
+        public override string ActionName => PoloniumRegistry.Action<TAction>.Name;
+
+        public override TAction Get
+        {
+            get
+            {
+                TAction res = PoloniumRegistry.Asset<TAction>.Get();
+                res.Reset();
+                Modify(res);
+                return res;
+            }
+        }
+
+        public override void Modify(AgentAction obj)
+        {
+            if (obj is not TAction act)
+                return;
+            Modify(act);
+        }
+
+        public void Return(TAction res) => PoloniumRegistry.Asset<TAction>.Return(res);
+
+        public override Template Copy => new Template<TAction> { };
+
+        public virtual void Modify(TAction action)
+        {
+        }
+    }
+}
+
+
diff --git a/src/Agents/Knowledge.cs b/src/Agents/Knowledge.cs
index 6a51d94..335d6f9 100644
--- a/src/Agents/Knowledge.cs
+++ b/src/Agents/Knowledge.cs
@@ -1,8 +1,12 @@
 using Godot;
+using Polonium.Resources;
 
 namespace Polonium.Agents;
 
 public abstract partial class Knowledge : Node
 {
-    
-}
\ No newline at end of file
+    [Signal]
+    public delegate void KnowledgeUpdatedEventHandler(KnowledgePatch update);
+    public abstract void UpdateKnowledge(KnowledgePatch update);
+}
+
diff --git a/src/Agents/World.cs b/src/Agents/World.cs
index e3fa191..53e6c01 100644
--- a/src/Agents/World.cs
+++ b/src/Agents/World.cs
@@ -5,7 +5,7 @@ namespace Polonium.Agents;
 
 public abstract partial class World : Node 
 {
-    private WorldModel Model { get; set; }
+    protected WorldModel Model { get; set; }
     public HashSet<Agent> Agents { get; } = new();
     public Knowledge CommonKnowledge { get; set; }
 
diff --git a/src/Agents/WorldModel.cs b/src/Agents/WorldModel.cs
index b5a7794..d578347 100644
--- a/src/Agents/WorldModel.cs
+++ b/src/Agents/WorldModel.cs
@@ -11,7 +11,7 @@ public abstract partial class WorldModel : Node
     [Signal]
     public delegate void PrivateKnowledgeUpdatedEventHandler(SignalHeader header, KnowledgePatch update);
     
-    private Knowledge WorldKnowledge { get; set; }
+    protected Knowledge WorldKnowledge { get; set; }
     
     public override void _Ready()
     {
diff --git a/src/Attributes/SkinInfo.cs b/src/Attributes/SkinInfo.cs
new file mode 100644
index 0000000..2c6d239
--- /dev/null
+++ b/src/Attributes/SkinInfo.cs
@@ -0,0 +1,8 @@
+namespace Polonium.Attributes;
+[AttributeUsage(AttributeTargets.Class)]
+public class SkinInfo(string path, int roots = 1) : Attribute
+{
+    public string Path { get; set; } = path;
+    public int Roots { get; set; } = roots;
+    
+}
diff --git a/src/ItemManagers/Generic/SkinItem.cs b/src/ItemManagers/Generic/SkinItem.cs
new file mode 100644
index 0000000..371f883
--- /dev/null
+++ b/src/ItemManagers/Generic/SkinItem.cs
@@ -0,0 +1,33 @@
+using Godot;
+using Polonium.SkinManagers.Generic;
+
+namespace Polonium.ItemManagers.Generic;
+
+public abstract partial class SkinItem<TItem, TSkin> : SkinItem
+    where TItem : SkinItem<TItem, TSkin>
+    where TSkin : Skin<TSkin>
+{
+    public new TSkin Skin
+    {
+        get => base.Skin as TSkin;
+        set => base.Skin = value;
+    }
+
+    public new abstract class Template : SkinItem.Template
+    {
+        public Dictionary<int, (Color, bool)> DyeInfo { get; set; } = new();
+        public override SkinItem Get => GenericGet<TItem, TSkin>();
+
+        public virtual void Return(TItem item) => GenericReturn<TItem, TSkin>(item);
+
+        public override void Modify(SkinItem obj)
+        {
+            foreach (int key in DyeInfo.Keys)
+            {
+                (Color c, bool g) = DyeInfo[key];
+                obj.Skin.Dye(key, c, g);
+            }
+        }
+    }
+
+}
\ No newline at end of file
diff --git a/src/ItemManagers/Item.cs b/src/ItemManagers/Item.cs
new file mode 100644
index 0000000..e09b041
--- /dev/null
+++ b/src/ItemManagers/Item.cs
@@ -0,0 +1,36 @@
+using Godot;
+
+namespace Polonium.ItemManagers;
+
+public abstract partial class Item : Node
+{
+    public Texture2D ItemIcon { get; set; }
+    public abstract class Template : PoloniumTemplate<Item>
+    {
+    }
+
+    public class Template<TItem> : Template
+        where TItem : Item
+    {
+        public override Item Get
+        {
+            get
+            {
+                TItem res = PoloniumRegistry.Asset<TItem>.Get();
+                Modify(res);
+                return res;
+            }
+        }
+
+        public override void Modify(Item obj)
+        {
+            if (obj is not TItem item)
+                return;
+            Modify(item);
+        }
+
+        public virtual void Modify(TItem res)
+        {
+        }
+    }
+}
diff --git a/src/ItemManagers/SkinItem.cs b/src/ItemManagers/SkinItem.cs
new file mode 100644
index 0000000..c0860b9
--- /dev/null
+++ b/src/ItemManagers/SkinItem.cs
@@ -0,0 +1,53 @@
+using Polonium.SkinManagers;
+
+namespace Polonium.ItemManagers;
+
+public abstract partial class SkinItem : Item
+{
+    public Skin Skin { get; set; }
+
+    public virtual void Reset()
+    {
+    }
+
+    public new abstract class Template : PoloniumTemplate<SkinItem>
+    {
+        protected SkinItem Instance { get; set; }
+
+        protected virtual TItem GenericGet<TItem, TSkin>()
+            where TItem : SkinItem
+            where TSkin : Skin
+        {
+            TItem res = PoloniumRegistry.Asset<TItem>.Get();
+            res.Reset();
+            res.Skin = GetSkin<TSkin>();
+            Modify(res);
+            return res;
+        }
+
+        protected virtual void GenericReturn<TItem, TSkin>(TItem item)
+            where TItem : SkinItem
+            where TSkin : Skin
+        {
+            ReturnSkin(item.Skin as TSkin);
+            item.Skin = null;
+            PoloniumRegistry.Asset<TItem>.Return(item);
+        }
+
+        protected virtual TSkin GetSkin<TSkin>()
+            where TSkin : Skin
+        {
+            TSkin res = PoloniumRegistry.Asset<TSkin>.Get();
+            res.Init();
+            return res;
+        }
+
+        protected virtual void ReturnSkin<TSkin>(TSkin skin)
+            where TSkin : Skin
+        {
+            PoloniumRegistry.Asset<TSkin>.Return(skin);
+        }
+
+    }
+
+}
diff --git a/src/PoloniumRegistry.cs b/src/PoloniumRegistry.cs
index 04bbd43..0f7a386 100644
--- a/src/PoloniumRegistry.cs
+++ b/src/PoloniumRegistry.cs
@@ -32,6 +32,39 @@ public class PoloniumRegistry
     // ReSharper disable once CollectionNeverQueried.Global
     [RegistryPassThrough(true)]
     public HashSet<ITimeConsumer> TimeConsumers { get; } = new();
-    
+
+    public static class Action<TAction> 
+        where TAction : AgentAction
+    {
+        // ReSharper disable once StaticMemberInGenericType
+        public static string Name { get; set; }
+    }
+
+
+    public static class SkinRegistry<TSkin>
+        where TSkin : Polonium.SkinManagers.Skin
+    {
+        // ReSharper disable once StaticMemberInGenericType
+        public static Color[] PaletteRoots { get; set; }
+        // ReSharper disable once StaticMemberInGenericType
+        public static Dictionary<Color, Color[]> PaletteMap { get; set; }
+    }
+
+    public static class Asset<TAsset>
+        where TAsset : Node
+    {
+        private static readonly Queue<TAsset> Pool = new();
+        public static PackedScene Scene { get; set; }
+        private static TAsset Instance => Scene.Instantiate<TAsset>();
+        public static TAsset Get() => Pool.Count > 0 ? Pool.Dequeue() : Instance;
+
+        public static void Return(TAsset asset)
+        {
+            if (Pool.Count < 10)
+                Pool.Enqueue(asset);
+            else
+                asset.QueueFree();
+        }
+    }
 
 }
diff --git a/src/PoloniumTemplate.cs b/src/PoloniumTemplate.cs
new file mode 100644
index 0000000..c39adaa
--- /dev/null
+++ b/src/PoloniumTemplate.cs
@@ -0,0 +1,7 @@
+namespace Polonium;
+
+public abstract class PoloniumTemplate<TObj>
+{
+    public abstract TObj Get { get; }
+    public abstract void Modify(TObj obj);
+}
\ No newline at end of file
diff --git a/src/Resources/SignalHeader.cs b/src/Resources/SignalHeader.cs
index 468d298..9189a00 100644
--- a/src/Resources/SignalHeader.cs
+++ b/src/Resources/SignalHeader.cs
@@ -6,7 +6,7 @@ namespace Polonium.Resources;
 public abstract partial class SignalHeader : Resource
 {
 
-    public abstract Agent[] ResolveReceivers();
+    public abstract IEnumerable<Agent> ResolveReceivers();
     public abstract Agent ResolveSender();
 
     public abstract void SetSender(Agent agent);
diff --git a/src/SkinManagers/Generic/AutoPaletteSkin.cs b/src/SkinManagers/Generic/AutoPaletteSkin.cs
new file mode 100644
index 0000000..832a0d8
--- /dev/null
+++ b/src/SkinManagers/Generic/AutoPaletteSkin.cs
@@ -0,0 +1,8 @@
+namespace Polonium.SkinManagers.Generic;
+
+public abstract partial class AutoPaletteSkin<TSkin> : Skin<TSkin>
+    where TSkin : AutoPaletteSkin<TSkin>
+{
+    protected override int Columns => 1;
+    protected override int Rows => 1;
+}
\ No newline at end of file
diff --git a/src/SkinManagers/Generic/Skin.cs b/src/SkinManagers/Generic/Skin.cs
new file mode 100644
index 0000000..9ebd7c6
--- /dev/null
+++ b/src/SkinManagers/Generic/Skin.cs
@@ -0,0 +1,12 @@
+
+using Godot;
+
+namespace Polonium.SkinManagers.Generic;
+
+public abstract partial class Skin<TSkin> : Skin
+    where TSkin : Skin<TSkin>
+{
+    protected override int RootCount => PaletteRoots.Length;
+    protected override Color[] PaletteRoots => PoloniumRegistry.SkinRegistry<TSkin>.PaletteRoots;
+    protected override Dictionary<Color, Color[]> PaletteMap => PoloniumRegistry.SkinRegistry<TSkin>.PaletteMap;
+}
\ No newline at end of file
diff --git a/src/SkinManagers/Skin.cs b/src/SkinManagers/Skin.cs
new file mode 100644
index 0000000..1af2f2b
--- /dev/null
+++ b/src/SkinManagers/Skin.cs
@@ -0,0 +1,112 @@
+using Godot;
+
+namespace Polonium.SkinManagers;
+
+public abstract partial class Skin : Sprite2D
+{
+    protected abstract int Columns { get; }
+    protected abstract int Rows { get; }
+
+    protected virtual string ShaderMaterialPath => "res://embedded/Miscs/SkinDyeMaterial.tres";
+    
+    protected ShaderMaterial ShaderMaterial
+    {
+        get => Material as ShaderMaterial;
+        set => Material = value;
+    }
+
+    protected abstract Color[] PaletteRoots { get; }
+
+    protected abstract Dictionary<Color, Color[]> PaletteMap { get; }
+    protected Color[] DyeMap { get; set; }
+    protected int[] GlowingMap { get; set; }
+    protected abstract int RootCount { get; }
+
+    private struct DyeInfo
+    {
+        public Color[] ColorFrom;
+        public Color[] ColorTo;
+        public int[] Glowing;
+    }
+
+
+    private DyeInfo FullDyePair
+    {
+        get
+        {
+            List<Color> colorFrom = new List<Color>();
+            List<Color> colorTo = new List<Color>();
+            List<int> glowing = new List<int>();
+            for (int i = 0; i < PaletteRoots.Length; i++)
+            {
+                Color rootSource = PaletteRoots[i];
+                Color rootTarget = DyeMap[i];
+                int isGlowing = GlowingMap[i];
+                foreach (Color c in PaletteMap[rootSource])
+                {
+                    colorFrom.Add(c);
+                    float h = c.H + rootTarget.H - rootSource.H;
+                    if (h > 0)
+                        h -= 1;
+                    if (h < 0)
+                        h += 1;
+                    float s = rootSource.S > 0 
+                        ? Math.Max(0, Math.Min(1, c.S * (rootTarget.S / rootSource.S)))
+                        : Math.Max(0, Math.Min(1, rootTarget.S + (c.S - rootSource.S)));
+
+                    float v = rootSource.V > 0 
+                        ? Math.Max(0, Math.Min(1, c.V * (rootTarget.V / rootSource.V)))
+                        : Math.Max(0, Math.Min(1, rootTarget.V + (c.V - rootSource.V)));
+                    colorTo.Add(Color.FromHsv(h, s, v, rootTarget.A));
+                    glowing.Add(isGlowing);
+                }
+                
+            }
+            while (colorFrom.Count < 32)
+            {
+                colorFrom.Add(Color.Color8(1, 2, 3, 4));
+                colorTo.Add(Color.Color8(1, 2, 3, 4));
+                glowing.Add(0);
+            }
+
+            return  new DyeInfo(){ ColorFrom = colorFrom.ToArray(),  ColorTo = colorTo.ToArray(), Glowing = glowing.ToArray() };
+        }
+    }
+
+    public virtual void Init()
+    {
+        Hframes = Columns;
+        Vframes = Rows;
+        if (DyeMap is null || DyeMap.Length != PaletteRoots.Length)
+        {
+            DyeMap = new Color[PaletteRoots.Length];
+            GlowingMap = new int[PaletteRoots.Length];
+            for (int i = 0; i < PaletteRoots.Length; i++)
+            {
+                DyeMap[i] = PaletteRoots[i];
+                GlowingMap[i] = 0;
+            }
+        }
+        
+        ShaderMaterial = ResourceLoader
+            .Load<ShaderMaterial>(ShaderMaterialPath)
+            .Duplicate() as ShaderMaterial;
+        Rerender();
+    }
+
+    private void Rerender()
+    {
+        DyeInfo info = FullDyePair;
+        ShaderMaterial.SetShaderParameter("old_palette", info.ColorFrom);
+        ShaderMaterial.SetShaderParameter("new_palette", info.ColorTo);
+        ShaderMaterial.SetShaderParameter("glowing", info.Glowing);
+    }
+
+    public void Dye(int rootIdx, Color target, bool glowing = false)
+    {
+        DyeMap[rootIdx] = target;
+        GlowingMap[rootIdx] = glowing ? 1 : 0;
+        Rerender();
+    }
+
+}
\ No newline at end of file
diff --git a/src/SkinManagers/SkinPacker.cs b/src/SkinManagers/SkinPacker.cs
new file mode 100644
index 0000000..583022b
--- /dev/null
+++ b/src/SkinManagers/SkinPacker.cs
@@ -0,0 +1,43 @@
+using Godot;
+
+namespace Polonium.SkinManagers;
+
+public abstract partial class SkinPacker : Node2D
+{
+    public Node2D SkinCollector { get; set; }
+    protected Skin[] CollectedSkins => SkinCollector
+        .GetChildren()
+        .OfType<Skin>()
+        .ToArray();
+
+    private Vector2I BackingFrameCoords { get; set; }
+
+    [Export]
+    protected Vector2I FrameCoords
+    {
+        get => BackingFrameCoords;
+        set
+        {
+            BackingFrameCoords = value;
+            UpdateSkins();
+        }
+    }
+
+    private void UpdateSkins()
+    {
+        if (SkinCollector is not null)
+            foreach(Skin skin in CollectedSkins)
+                skin.FrameCoords = FrameCoords;
+    }
+
+    public AnimationPlayer SyncPlayer { get; set; }
+
+    public override void _Ready()
+    {
+        base._Ready();
+        SyncPlayer = GetNode<AnimationPlayer>("AnimationPlayer");
+        SkinCollector = GetNode<Node2D>("SkinCollector");
+    }
+
+
+}
\ No newline at end of file