Update lib/matplotlib/lines.py

rcomer · timhoffm · web-flow · commit 6674d7b18e9d · 2022-06-12T16:43:00.000+01:00
Co-authored-by: Tim Hoffmann &lt;2836374+timhoffm@users.noreply.github.com&gt;
diff --git a/lib/matplotlib/lines.py b/lib/matplotlib/lines.py
@@ -1246,10 +1246,11 @@ def set_secondcolor(self, secondcolor):
         """
         Set a second color to fill the gaps in the dashed line style.
 
-        .. warning::
+        .. note::
 
-            In some cases the two line colors may overlap, which could lead to
-            unwanted effects if also setting ``alpha``.
+            Striped lines are created by drawing two interleaved dashed lines.
+            There can be single-pixel sized overlaps between those two, which
+            may result in artifacts when using transparency.
 
         Parameters
         ----------
