diff --git a/docs/assets/screenshots/gui-annotation_tool.gif b/docs/assets/screenshots/gui-annotation_tool.gif
new file mode 100644
index 0000000000000000000000000000000000000000..c106bcd09bbb0701bed2dbe127133c651f10b59a
Binary files /dev/null and b/docs/assets/screenshots/gui-annotation_tool.gif differ
diff --git a/docs/assets/screenshots/interactive_edge_fading.png b/docs/assets/screenshots/interactive_edge_fading.png
deleted file mode 100644
index 443c2827ac1e0c05cd08ef80eed907343812e111..0000000000000000000000000000000000000000
Binary files a/docs/assets/screenshots/interactive_edge_fading.png and /dev/null differ
diff --git a/docs/assets/screenshots/viz-fade_mask.gif b/docs/assets/screenshots/viz-fade_mask.gif
new file mode 100644
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Binary files /dev/null and b/docs/assets/screenshots/viz-fade_mask.gif differ
diff --git a/docs/processing.md b/docs/processing.md
index 8ecbce5063504f25ce132d8972f45b6021652cad..ab737cb3ff984210f03ee249f18b87622a7a9495 100644
--- a/docs/processing.md
+++ b/docs/processing.md
@@ -17,3 +17,4 @@ Here, we provide functionalities designed specifically for 3D image analysis and
             - remove_background
             - watershed
             - edge_fade
+            - fade_mask
diff --git a/docs/releases.md b/docs/releases.md
index 50372a1de82bd8730db03743793883544172125a..b6e158634f9908fc2901e353a8b4d83580b0beea 100644
--- a/docs/releases.md
+++ b/docs/releases.md
@@ -9,9 +9,17 @@ As the library is still in its early development stages, **there may be breaking
 
 And remember to keep your pip installation [up to date](/qim3d/#upgrade) so that you have the latest features!
 
+### v0.3.6 (30/05/2024)
+- Refactoring for performance improvement
+- Welcome message for the CLI
+- Introduction of `qim3d.processing.fade_mask` 🎉
+
+
 ### v0.3.5 (27/05/2024)
 - Added runtime and memory usage in the documentation
 - Introduction of `qim3d.utils.generate_volume` 🎉
+- Introduction of `preview` CLI 🎉
+
 
 ### v0.3.4 (22/05/2024)
 - Documentation for `qim3d.viz.plot_cc`
diff --git a/docs/viz.md b/docs/viz.md
index e0ea9f1d5a64a2456ad4f740f857350ee72d0936..691d31b496d472bd1725300f59ab7019d3155e4f 100644
--- a/docs/viz.md
+++ b/docs/viz.md
@@ -12,7 +12,7 @@ The `qim3d` library aims to provide easy ways to explore and get insights from v
             - vectors
             - plot_cc
             - colormaps
-            - interactive_edge_fade
+            - interactive_fade_mask
             
 ::: qim3d.viz.colormaps
     options:
diff --git a/qim3d/gui/annotation_tool.py b/qim3d/gui/annotation_tool.py
index 571f53cce62630d280935f4086f210fe972af7ca..da66452814755d3af254a076b4c40063f4a66321 100644
--- a/qim3d/gui/annotation_tool.py
+++ b/qim3d/gui/annotation_tool.py
@@ -10,9 +10,14 @@ Or launched from a python script
 ```python
 import qim3d
 
-app = qim3d.gui.annotation_tool.Interface()
-app.launch()
+vol = qim3d.examples.NT_128x128x128
+annotation_tool = qim3d.gui.annotation_tool.Interface()
+
+# We can directly pass the image we loaded to the interface
+app = annotation_tool.launch(vol[0])
 ```
+![gui-annotation_tool](assets/screenshots/gui-annotation_tool.gif)
+
 """
 
 import getpass
diff --git a/qim3d/viz/img.py b/qim3d/viz/img.py
index 53f6fe7dea0b83dfd39f843c612ce1507f830aab..24980b5c6ab872652ce8ad04d89a84e3c9449314 100644
--- a/qim3d/viz/img.py
+++ b/qim3d/viz/img.py
@@ -562,19 +562,19 @@ def vol_masked(vol, vol_mask, viz_delta=128):
 def interactive_fade_mask(vol: np.ndarray, axis: int = 0):
     """ Interactive widget for visualizing the effect of edge fading on a 3D volume.
 
+    This can be used to select the best parameters before applying the mask.
+
     Args:
         vol (np.ndarray): The volume to apply edge fading to.
         axis (int, optional): The axis along which to apply the fading. Defaults to 0.
 
-    Returns:
-        np.ndarray: The volume with edge fading applied.
-
     Example:
         ```python
         import qim3d
-        qim3d.viz.img.interactive_edge_fade(vol, geometric='cylindrical', axis=0) 
+        vol = qim3d.examples.cement_128x128x128
+        qim3d.viz.interactive_fade_mask(vol) 
         ```
-        ![operations-edge_fade_before](assets/screenshots/interactive_edge_fading.png)  
+        ![operations-edge_fade_before](assets/screenshots/viz-fade_mask.gif)  
 
     """