diff --git a/Microsoft.VisualBasic.Core/src/Extensions/Image/Bitmap/netcore8.0/Image.vb b/Microsoft.VisualBasic.Core/src/Extensions/Image/Bitmap/netcore8.0/Image.vb
index afb8ba678d..08683c4fa1 100644
--- a/Microsoft.VisualBasic.Core/src/Extensions/Image/Bitmap/netcore8.0/Image.vb
+++ b/Microsoft.VisualBasic.Core/src/Extensions/Image/Bitmap/netcore8.0/Image.vb
@@ -90,6 +90,11 @@ Namespace Imaging
             Throw New NotImplementedException
         End Sub
 
+        <MethodImpl(MethodImplOptions.AggressiveInlining)>
+        Public Sub SetPixel(x As Integer, y As Integer, pixel As Color)
+            Call memoryBuffer.SetPixel(x, y, pixel)
+        End Sub
+
         Public Function Resize(newWidth As Integer, newHeight As Integer) As Bitmap
             Dim pixels = memoryBuffer.GetARGB
             pixels = BitmapResizer.ResizeImage(pixels, memoryBuffer.Width, memoryBuffer.Height, newWidth, newHeight)
diff --git a/gr/Microsoft.VisualBasic.Imaging/TextureResourceLoader.vb b/gr/Microsoft.VisualBasic.Imaging/TextureResourceLoader.vb
index fd89691ea9..c9755c7139 100644
--- a/gr/Microsoft.VisualBasic.Imaging/TextureResourceLoader.vb
+++ b/gr/Microsoft.VisualBasic.Imaging/TextureResourceLoader.vb
@@ -52,10 +52,7 @@
 #End Region
 
 Imports System.Drawing
-Imports Microsoft.VisualBasic.CommandLine.Reflection
 Imports Microsoft.VisualBasic.Imaging.BitmapImage
-Imports Microsoft.VisualBasic.Language
-Imports Microsoft.VisualBasic.Scripting.MetaData
 
 ''' <summary>
 ''' Default texture brush provider
@@ -65,39 +62,50 @@ Public Module TextureResourceLoader
     ''' <summary>
     ''' 按照指定的资源图片和参数进行纹理资源的剪裁处理
     ''' </summary>
-    ''' <param name="Resource"></param>
+    ''' <param name="res"></param>
     ''' <param name="Size"></param>
     ''' <param name="IntervalWidth">纹理模块之间在水平上的间隔宽度</param>
     ''' <param name="IntervalHeight">纹理模块之间在竖直方向上的间隔宽度</param>
     ''' <returns></returns>
     ''' <remarks></remarks>
     ''' 
-    <ExportAPI("Load.TextureResource")>
-    Public Function LoadTextureResource(Resource As Image, Size As Size, IntervalWidth As Integer, IntervalHeight As Integer) As Image()
-        Dim list As New List(Of Image)
+    Public Iterator Function LoadTextureResource(res As Image, Size As Size, IntervalWidth As Integer, IntervalHeight As Integer) As IEnumerable(Of Bitmap)
         Dim X As Integer
         Dim Y As Integer
+        Dim spirit As BitmapBuffer = BitmapBuffer.FromImage(res)
 
         Do While True
-            Dim resToken As Image = Resource.ImageCrop(New Rectangle(New Point(X, Y), Size))
+            Dim resToken As New Bitmap(Size.Width, Size.Height)
+
+            ' make copy of a rection in location x,y and rectangle in size
+            ' from spirit texture resource to resToken bitmap
+            For xi As Integer = 0 To Size.Width
+                For yi As Integer = 0 To Size.Height
+                    resToken.SetPixel(xi, yi, spirit.GetPixel(xi + X, yi + Y))
+                Next
+            Next
+
+            Yield resToken
 
-            list += resToken
             X += IntervalWidth + Size.Width
 
-            If X >= Resource.Width Then
+            If X >= res.Width Then
                 X = 0
                 Y += Size.Height + IntervalHeight
             End If
 
-            If Y >= Resource.Height Then
+            If Y >= res.Height Then
                 Exit Do
             End If
         Loop
-
-        Return list.ToArray
     End Function
 
-    <ExportAPI("Texture.Color.Adjust")>
+    ''' <summary>
+    ''' adjust of the image color of the texture image
+    ''' </summary>
+    ''' <param name="Image"></param>
+    ''' <param name="Color"></param>
+    ''' <returns></returns>
     Public Function AdjustColor(Image As Image, Color As Color) As Image
         Dim res As BitmapBuffer = BitmapBuffer.FromImage(Image)
         Dim X, Y As Integer
@@ -126,8 +134,19 @@ Public Module TextureResourceLoader
         Return res.GetImage
     End Function
 
-    <ExportAPI("LoadResource.InternalDefault")>
-    Public Function LoadInternalDefaultResource() As Image()
-        Return TextureResourceLoader.LoadTextureResource(My.Resources.DefaultTexture, New Size(27, 19), 6, 6)
+    ''' <summary>
+    ''' Load default internal texture image resource
+    ''' </summary>
+    ''' <returns></returns>
+    Public Function LoadInternalDefaultResource() As Bitmap()
+        Dim [default] As Bitmap
+
+#If NET48 Then
+        [default] = My.Resources.DefaultTexture
+#Else
+        [default] = Bitmap.FromStream(My.Resources.ResourceManager.GetStream("DefaultTexture"))
+#End If
+
+        Return TextureResourceLoader.LoadTextureResource([default], New Size(27, 19), 6, 6).ToArray
     End Function
 End Module