fastplotlib
diff --git a/‎fastplotlib/graphics/_graphic_attribute.py
Copy file name to clipboardExpand all lines: fastplotlib/graphics/_graphic_attribute.py
+16-6Lines changed: 16 additions & 6 deletions b/‎fastplotlib/graphics/_graphic_attribute.py
Copy file name to clipboardExpand all lines: fastplotlib/graphics/_graphic_attribute.py
+16-6Lines changed: 16 additions & 6 deletions
@@ -9,13 +9,13 @@ def __init__(self, parent, data: Any):
         self._parent = parent
         self._data = data.astype(np.float32)
 
-    @property
-    def data(self) -> Any:
-        return self._data
-
     def set_parent(self, parent: Any):
         self._parent = parent
 
+    @property
+    def data(self):
+        return self._data
+
     @abstractmethod
     def __getitem__(self, item):
         pass
@@ -28,6 +28,10 @@ def __setitem__(self, key, value):
     def _update_range(self, key):
         pass
 
+    @abstractmethod
+    def __repr__(self):
+        pass
+
 
 def cleanup_slice(slice_obj: slice, upper_bound) -> slice:
     start = slice_obj.start
@@ -56,7 +60,7 @@ def cleanup_slice(slice_obj: slice, upper_bound) -> slice:
 
 
 class ColorFeature(GraphicFeature):
-    def __init__(self, parent, colors, n_colors):
+    def __init__(self, parent, colors, n_colors, alpha: float = 1.0):
         """
         ColorFeature
 
@@ -119,6 +123,9 @@ def __init__(self, parent, colors, n_colors):
             c = Color(colors)
             data = np.repeat(np.array([c]), n_colors, axis=0)
 
+        if alpha != 1.0:
+            data[:, -1] = alpha
+
         super(ColorFeature, self).__init__(parent, data)
 
         self._upper_bound = data.shape[0]
@@ -211,4 +218,7 @@ def _update_range(self, key):
                 self._parent.world_object.geometry.colors.update_range(ix, size=1)
 
     def __getitem__(self, item):
-        return self._parent.world_object.geometry.colors.data[item]
+        return self._parent.world_object.geometry.colors.data[item]
+
+    def __repr__(self):
+        return repr(self._parent.world_object.geometry.colors.data)