Fix colorbars with theme_matplotlib

fixes #403
has2k1 · Jun 30, 2020 · cfef476 · cfef476
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diff --git a/doc/changelog.rst b/doc/changelog.rst
@@ -16,6 +16,9 @@ Bug Fixes
   only have ``x`` aesthetic and not ``xmin`` and ``xmax``
   e.g :class:`plotnine.geoms.geom_text`.
 
+- Fix regression in ``v0.7.0`` where plots with a colorbar
+  would fail if using :class:`~plotnine.themse.theme_matplotlib`.
+
 v0.7.0
 ------
 (2020-06-05)

diff --git a/plotnine/tests/baseline_images/test_theme/theme_matplotlib.png b/plotnine/tests/baseline_images/test_theme/theme_matplotlib.png
diff --git a/plotnine/themes/theme_matplotlib.py b/plotnine/themes/theme_matplotlib.py
@@ -31,6 +31,7 @@ def __init__(self, rc=None, fname=None, use_defaults=True):
             dpi=get_option('dpi'),
             figure_size=get_option('figure_size'),
             legend_key=element_rect(fill='None', colour='None'),
+            legend_key_size=16,
             panel_spacing=0.1,
             strip_background=element_rect(
                 fill='#D9D9D9', color='#D9D9D9', size=1),