diff --git a/py/imagefunc.py b/py/imagefunc.py
index d5dbb41..04ec519 100644
--- a/py/imagefunc.py
+++ b/py/imagefunc.py
@@ -607,7 +607,7 @@ def image_rotate_extend_with_alpha(image:Image, angle:float, alpha:Image=None, m
         ret_image = RGB2RGBA(_image, _alpha)
     else:
         ret_image = _image
-    return (_image, _alpha, ret_image)
+    return (_image, _alpha.convert('L'), ret_image)
 
 def create_box_gradient(start_color_inhex:str, end_color_inhex:str, width:int, height:int, scale:int=50) -> Image:
     # scale is percent of border to center for the rectangle
diff --git a/py/layer_image_transform.py b/py/layer_image_transform.py
index befb6b5..8b86c31 100644
--- a/py/layer_image_transform.py
+++ b/py/layer_image_transform.py
@@ -21,7 +21,7 @@ class LayerImageTransform:
                 "aspect_ratio": ("FLOAT", {"default": 1, "min": 0.01, "max": 100, "step": 0.01}),
                 "rotate": ("FLOAT", {"default": 0, "min": -999999, "max": 999999, "step": 0.01}),
                 "transform_method": (method_mode,),
-                "anti_aliasing": ("INT", {"default": 0, "min": 0, "max": 16, "step": 1}),
+                "anti_aliasing": ("INT", {"default": 2, "min": 0, "max": 16, "step": 1}),
             },
             "optional": {
             }
@@ -72,8 +72,10 @@ class LayerImageTransform:
             # rotate
             _image, _mask, _ = image_rotate_extend_with_alpha(_image, rotate, _mask, transform_method, anti_aliasing)
             # composit layer
-            _image_canvas.paste(_image, (x, y))
-            _mask_canvas.paste(_mask, (x, y))
+            paste_x = (orig_layer_width - _image.width) // 2 + x
+            paste_y = (orig_layer_height - _image.height) // 2 + y
+            _image_canvas.paste(_image, (paste_x, paste_y))
+            _mask_canvas.paste(_mask, (paste_x, paste_y))
             if tensor2pil(layer_image).mode == 'RGBA':
                 _image_canvas = RGB2RGBA(_image_canvas, _mask_canvas)
 
diff --git a/py/layer_mask_transform.py b/py/layer_mask_transform.py
index e9ca731..4717f22 100644
--- a/py/layer_mask_transform.py
+++ b/py/layer_mask_transform.py
@@ -21,7 +21,7 @@ class LayerMaskTransform:
                 "aspect_ratio": ("FLOAT", {"default": 1, "min": 0.01, "max": 100, "step": 0.01}),
                 "rotate": ("FLOAT", {"default": 0, "min": -999999, "max": 999999, "step": 0.01}),
                 "transform_method": (method_mode,),
-                "anti_aliasing": ("INT", {"default": 0, "min": 0, "max": 16, "step": 1}),
+                "anti_aliasing": ("INT", {"default": 2, "min": 0, "max": 16, "step": 1}),
             },
             "optional": {
             }
@@ -60,8 +60,10 @@ class LayerMaskTransform:
             _mask = _mask.resize((target_layer_width, target_layer_height))
             # rotate
             _, _mask, _ = image_rotate_extend_with_alpha(_mask.convert('RGB'), rotate, _mask, transform_method, anti_aliasing)
+            paste_x = (orig_width - _mask.width) // 2 + x
+            paste_y = (orig_height - _mask.height) // 2 + y
             # composit layer
-            _mask_canvas.paste(_mask, (x, y))
+            _mask_canvas.paste(_mask, (paste_x, paste_y))
 
             ret_masks.append(image2mask(_mask_canvas))