diff --git a/docs/2dplots.py b/docs/2dplots.py
index 3f27b7b56..edca512bb 100644
--- a/docs/2dplots.py
+++ b/docs/2dplots.py
@@ -34,13 +34,13 @@
 #
 # .. important::
 #
-#    By default, UltraPlot automatically adjusts the width of
-#    :func:`~ultraplot.axes.PlotAxes.contourf` and :func:`~ultraplot.axes.PlotAxes.pcolor` edges
-#    to eliminate the appearance of `"white lines" in saved vector graphic files
-#    <https://github.com/jklymak/contourfIssues>`__. However, this can significantly
-#    slow down the drawing time for large datasets. To disable this feature,
-#    pass ``edgefix=False`` to the relevant :class:`~ultraplot.axes.PlotAxes` command,
-#    or set :rcraw:`edgefix` to ``False`` to disable globally.
+#    UltraPlot includes functionality to fix the common issue of unwanted
+#    `"white lines" in saved vector graphic files
+#    <https://github.com/jklymak/contourfIssues>`__ by adjusting the width of
+#    :func:`~ultraplot.axes.PlotAxes.contourf` and :func:`~ultraplot.axes.PlotAxes.pcolor` edges.
+#    This feature is disabled by default to maintain optimal performance, especially for large datasets.
+#    To enable this edge-fixing capability, pass ``edgefix=True`` to the relevant
+#    :class:`~ultraplot.axes.PlotAxes` command, or set :rcraw:`edgefix` to ``True`` to enable globally.
 
 # %% [raw] raw_mimetype="text/restructuredtext"
 # .. _ug_2dstd:
diff --git a/ultraplot/axes/base.py b/ultraplot/axes/base.py
index 296222469..5c3892f9f 100644
--- a/ultraplot/axes/base.py
+++ b/ultraplot/axes/base.py
@@ -21,6 +21,7 @@
 import matplotlib.text as mtext
 import matplotlib.ticker as mticker
 import matplotlib.transforms as mtransforms
+from matplotlib import get_backend
 import numpy as np
 from matplotlib import cbook
 
diff --git a/ultraplot/internals/rcsetup.py b/ultraplot/internals/rcsetup.py
index 91a2e9266..6ac38bf7d 100644
--- a/ultraplot/internals/rcsetup.py
+++ b/ultraplot/internals/rcsetup.py
@@ -1131,7 +1131,7 @@ def copy(self):
     ),
     # Special setting
     "edgefix": (
-        True,
+        False,
         _validate_bool,
         'Whether to fix issues with "white lines" appearing between patches '
         "in saved vector graphics and with vector graphic backends. Applies "