diff --git a/src/Drawie.Backend.Core/Shaders/Generation/BuiltInFunctions.cs b/src/Drawie.Backend.Core/Shaders/Generation/BuiltInFunctions.cs
index 9b30b31..7a34025 100644
--- a/src/Drawie.Backend.Core/Shaders/Generation/BuiltInFunctions.cs
+++ b/src/Drawie.Backend.Core/Shaders/Generation/BuiltInFunctions.cs
@@ -9,6 +9,8 @@ public partial class BuiltInFunctions
 
     private const string Epsilon = "1e-10";
 
+    public Expression GetUnpremultiply(Expression rgbaHalf4) => Call(Unpremultiply, rgbaHalf4);
+    
     public Expression GetRgbToHsv(Expression rgba) => Call(RgbToHsv, rgba);
 
     public Expression GetRgbToHsl(Expression rgba) => Call(RgbToHsl, rgba);
@@ -65,6 +67,17 @@ private void Require(IBuiltInFunction function)
         usedFunctions.Add(function);
     }
 
+    private static readonly BuiltInFunction<Half4> Unpremultiply = new(
+        "half4 color",
+        nameof(Unpremultiply),
+        """
+        if (color.a <= 0.0) {
+            return half4(0, 0, 0, 0);
+        }
+        return half4(color.rgb / color.a, color.a);
+        """
+    );
+
     // Taken from here https://www.shadertoy.com/view/4dKcWK
     private static readonly BuiltInFunction<Half3> HueToRgb = new(
         "float hue",
diff --git a/src/Drawie.Backend.Core/Shaders/Generation/ShaderBuilder.cs b/src/Drawie.Backend.Core/Shaders/Generation/ShaderBuilder.cs
index 1880ce6..e16ef8f 100644
--- a/src/Drawie.Backend.Core/Shaders/Generation/ShaderBuilder.cs
+++ b/src/Drawie.Backend.Core/Shaders/Generation/ShaderBuilder.cs
@@ -83,20 +83,29 @@ public SurfaceSampler AddOrGetSurface(DrawingSurface surface, ColorSampleMode sa
 
     public Half4 Sample(SurfaceSampler texName, Expression pos, bool normalizedCoordinates)
     {
-        string resultName = $"color_{GetUniqueNameNumber()}";
-        Half4 result = new Half4(resultName);
-        _variables.Add(result);
+        string rawResultName = $"color_{GetUniqueNameNumber()}";
+        Half4 rawResult = new Half4(rawResultName);
+        _variables.Add(rawResult);
+        
+        string unpremulResultName = $"color_{GetUniqueNameNumber()}";
+        Half4 unpremulResult = new Half4(unpremulResultName);
+        _variables.Add(unpremulResult);
+        
         if (normalizedCoordinates)
         {
             _bodyBuilder.AppendLine(
-                $"half4 {resultName} = {texName.VariableName}.eval({pos.ExpressionValue} * iResolution);");
+                $"half4 {rawResultName} = {texName.VariableName}.eval({pos.ExpressionValue} * iResolution);");
+            _bodyBuilder.AppendLine(
+                $"half4 {unpremulResultName} = {Functions.GetUnpremultiply(rawResult).ExpressionValue};");
         }
         else
         {
-            _bodyBuilder.AppendLine($"half4 {resultName} = {texName.VariableName}.eval({pos.ExpressionValue});");
+            _bodyBuilder.AppendLine($"half4 {rawResultName} = {texName.VariableName}.eval({pos.ExpressionValue});");
+            _bodyBuilder.AppendLine(
+                $"half4 {unpremulResultName} = {Functions.GetUnpremultiply(rawResult).ExpressionValue};");
         }
 
-        return result;
+        return unpremulResult;
     }
 
     public void ReturnVar(Half4 colorValue, bool premultiply)
diff --git a/src/Drawie.Backend.Skia/Implementations/SkiaShaderImplementation.cs b/src/Drawie.Backend.Skia/Implementations/SkiaShaderImplementation.cs
index b67ca3e..2cf478d 100644
--- a/src/Drawie.Backend.Skia/Implementations/SkiaShaderImplementation.cs
+++ b/src/Drawie.Backend.Skia/Implementations/SkiaShaderImplementation.cs
@@ -553,6 +553,14 @@ internal static List<UniformDeclaration> DeclarationsFromEffect(string code, SKR
             return null;
         }
 
+        private static string RemoveLastOccurance(string text, string toRemove)
+        {
+            int index = text.LastIndexOf(toRemove, StringComparison.Ordinal);
+            return index < 0 ? 
+                text : 
+                text.Substring(0, index) + text.Substring(index + toRemove.Length);
+        }
+        
         private static bool TryDetectType(string lastString, string name, out UniformValueType? detectedType)
         {
             if (!lastString.Contains("uniform ", StringComparison.InvariantCultureIgnoreCase))
@@ -561,7 +569,7 @@ private static bool TryDetectType(string lastString, string name, out UniformVal
                 return false;
             }
 
-            string nameLessBlock = lastString.Replace(name, string.Empty);
+            string nameLessBlock = RemoveLastOccurance(lastString, name);
 
             if (nameLessBlock.Contains("color", StringComparison.InvariantCultureIgnoreCase))
             {