set legend fill opacity to 0.8 as is the mpl default

nschloe · nschloe · commit 3e6325f855a5 · 2019-11-23T12:48:50.000+01:00
diff --git a/test/test_barchart_legend_reference.tex b/test/test_barchart_legend_reference.tex
@@ -2,7 +2,7 @@
 
 \begin{axis}[
 legend cell align={left},
-legend style={draw=white!80.0!black},
+legend style={fill opacity=0.8, draw opacity=1, text opacity=1, draw=white!80.0!black},
 tick align=outside,
 tick pos=left,
 x grid style={white!69.01960784313725!black},
diff --git a/test/test_basic_sin_reference.tex b/test/test_basic_sin_reference.tex
@@ -7,7 +7,7 @@
 axis background/.style={fill=white!89.80392156862746!black},
 axis line style={white},
 legend cell align={left},
-legend style={at={(0.03,0.03)}, anchor=south west, draw=white!80.0!black, fill=white!89.80392156862746!black},
+legend style={fill opacity=0.8, draw opacity=1, text opacity=1, at={(0.03,0.03)}, anchor=south west, draw=white!80.0!black, fill=white!89.80392156862746!black},
 tick align=outside,
 tick pos=left,
 title={Simple plot \(\displaystyle \frac{\alpha}{2}\)},
diff --git a/test/test_histogram_reference.tex b/test/test_histogram_reference.tex
@@ -5,7 +5,7 @@
 
 \begin{axis}[
 legend cell align={left},
-legend style={draw=white!80.0!black},
+legend style={fill opacity=0.8, draw opacity=1, text opacity=1, draw=white!80.0!black},
 tick align=outside,
 tick pos=left,
 x grid style={white!69.01960784313725!black},
diff --git a/test/test_legend3_reference.tex b/test/test_legend3_reference.tex
@@ -2,7 +2,7 @@
 
 \begin{axis}[
 legend cell align={left},
-legend style={at={(0.03,0.97)}, anchor=north west, draw=white!80.0!black},
+legend style={fill opacity=0.8, draw opacity=1, text opacity=1, at={(0.03,0.97)}, anchor=north west, draw=white!80.0!black},
 tick align=outside,
 tick pos=left,
 x grid style={white!69.01960784313725!black},
diff --git a/test/test_legend_best_location_reference.tex b/test/test_legend_best_location_reference.tex
@@ -8,7 +8,7 @@
 \begin{groupplot}[group style={group size=3 by 3}]
 \nextgroupplot[
 legend cell align={left},
-legend style={draw=white!80.0!black},
+legend style={fill opacity=0.8, draw opacity=1, text opacity=1, draw=white!80.0!black},
 tick align=outside,
 tick pos=left,
 x grid style={white!69.01960784313725!black},
@@ -41,7 +41,7 @@
 
 \nextgroupplot[
 legend cell align={left},
-legend style={at={(0.03,0.97)}, anchor=north west, draw=white!80.0!black},
+legend style={fill opacity=0.8, draw opacity=1, text opacity=1, at={(0.03,0.97)}, anchor=north west, draw=white!80.0!black},
 tick align=outside,
 tick pos=left,
 x grid style={white!69.01960784313725!black},
@@ -74,7 +74,7 @@
 
 \nextgroupplot[
 legend cell align={left},
-legend style={at={(0.03,0.03)}, anchor=south west, draw=white!80.0!black},
+legend style={fill opacity=0.8, draw opacity=1, text opacity=1, at={(0.03,0.03)}, anchor=south west, draw=white!80.0!black},
 tick align=outside,
 tick pos=left,
 x grid style={white!69.01960784313725!black},
@@ -107,7 +107,7 @@
 
 \nextgroupplot[
 legend cell align={left},
-legend style={at={(0.03,0.03)}, anchor=south west, draw=white!80.0!black},
+legend style={fill opacity=0.8, draw opacity=1, text opacity=1, at={(0.03,0.03)}, anchor=south west, draw=white!80.0!black},
 tick align=outside,
 tick pos=left,
 x grid style={white!69.01960784313725!black},
@@ -140,7 +140,7 @@
 
 \nextgroupplot[
 legend cell align={left},
-legend style={at={(0.91,0.5)}, anchor=east, draw=white!80.0!black},
+legend style={fill opacity=0.8, draw opacity=1, text opacity=1, at={(0.91,0.5)}, anchor=east, draw=white!80.0!black},
 tick align=outside,
 tick pos=left,
 x grid style={white!69.01960784313725!black},
@@ -191,7 +191,7 @@
 
 \nextgroupplot[
 legend cell align={left},
-legend style={at={(0.09,0.5)}, anchor=west, draw=white!80.0!black},
+legend style={fill opacity=0.8, draw opacity=1, text opacity=1, at={(0.09,0.5)}, anchor=west, draw=white!80.0!black},
 tick align=outside,
 tick pos=left,
 x grid style={white!69.01960784313725!black},
@@ -262,7 +262,7 @@
 
 \nextgroupplot[
 legend cell align={left},
-legend style={at={(0.5,0.09)}, anchor=south, draw=white!80.0!black},
+legend style={fill opacity=0.8, draw opacity=1, text opacity=1, at={(0.5,0.09)}, anchor=south, draw=white!80.0!black},
 tick align=outside,
 tick pos=left,
 x grid style={white!69.01960784313725!black},
@@ -295,7 +295,7 @@
 
 \nextgroupplot[
 legend cell align={left},
-legend style={at={(0.5,0.91)}, anchor=north, draw=white!80.0!black},
+legend style={fill opacity=0.8, draw opacity=1, text opacity=1, at={(0.5,0.91)}, anchor=north, draw=white!80.0!black},
 tick align=outside,
 tick pos=left,
 x grid style={white!69.01960784313725!black},
@@ -327,7 +327,7 @@
 \addlegendentry{UC}
 
 \nextgroupplot[
-legend style={draw=white!80.0!black},
+legend style={fill opacity=0.8, draw opacity=1, text opacity=1, draw=white!80.0!black},
 tick align=outside,
 tick pos=left,
 x grid style={white!69.01960784313725!black},
diff --git a/test/test_legend_columns_reference.tex b/test/test_legend_columns_reference.tex
@@ -6,7 +6,7 @@
 \begin{axis}[
 legend cell align={left},
 legend columns=2,
-legend style={at={(0.5,0.91)}, anchor=north, draw=white!80.0!black},
+legend style={fill opacity=0.8, draw opacity=1, text opacity=1, at={(0.5,0.91)}, anchor=north, draw=white!80.0!black},
 tick align=outside,
 tick pos=left,
 x grid style={white!69.01960784313725!black},
diff --git a/test/test_legend_labels_reference.tex b/test/test_legend_labels_reference.tex
@@ -6,7 +6,7 @@
 
 \begin{axis}[
 legend cell align={left},
-legend style={draw=white!80.0!black},
+legend style={fill opacity=0.8, draw opacity=1, text opacity=1, draw=white!80.0!black},
 tick align=outside,
 tick pos=left,
 x grid style={white!69.01960784313725!black},
diff --git a/test/test_legend_line_scatter_reference.tex b/test/test_legend_line_scatter_reference.tex
@@ -4,7 +4,7 @@
 
 \begin{axis}[
 legend cell align={left},
-legend style={at={(0.03,0.97)}, anchor=north west, draw=white!80.0!black},
+legend style={fill opacity=0.8, draw opacity=1, text opacity=1, at={(0.03,0.97)}, anchor=north west, draw=white!80.0!black},
 tick align=outside,
 tick pos=left,
 x grid style={white!69.01960784313725!black},
diff --git a/test/test_legends2_reference.tex b/test/test_legends2_reference.tex
@@ -6,7 +6,7 @@
 \begin{groupplot}[group style={group size=3 by 3}]
 \nextgroupplot[
 legend cell align={left},
-legend style={at={(0.03,0.97)}, anchor=north west, draw=white!80.0!black},
+legend style={fill opacity=0.8, draw opacity=1, text opacity=1, at={(0.03,0.97)}, anchor=north west, draw=white!80.0!black},
 tick align=outside,
 tick pos=left,
 x grid style={white!69.01960784313725!black},
@@ -52,7 +52,7 @@
 
 \nextgroupplot[
 legend cell align={left},
-legend style={at={(0.03,0.03)}, anchor=south west, draw=white!80.0!black},
+legend style={fill opacity=0.8, draw opacity=1, text opacity=1, at={(0.03,0.03)}, anchor=south west, draw=white!80.0!black},
 tick align=outside,
 tick pos=left,
 x grid style={white!69.01960784313725!black},
@@ -98,7 +98,7 @@
 
 \nextgroupplot[
 legend cell align={left},
-legend style={at={(0.97,0.03)}, anchor=south east, draw=white!80.0!black},
+legend style={fill opacity=0.8, draw opacity=1, text opacity=1, at={(0.97,0.03)}, anchor=south east, draw=white!80.0!black},
 tick align=outside,
 tick pos=left,
 x grid style={white!69.01960784313725!black},
@@ -144,7 +144,7 @@
 
 \nextgroupplot[
 legend cell align={left},
-legend style={at={(0.97,0.5)}, anchor=east, draw=white!80.0!black},
+legend style={fill opacity=0.8, draw opacity=1, text opacity=1, at={(0.97,0.5)}, anchor=east, draw=white!80.0!black},
 tick align=outside,
 tick pos=left,
 x grid style={white!69.01960784313725!black},
@@ -190,7 +190,7 @@
 
 \nextgroupplot[
 legend cell align={left},
-legend style={at={(0.09,0.5)}, anchor=west, draw=white!80.0!black},
+legend style={fill opacity=0.8, draw opacity=1, text opacity=1, at={(0.09,0.5)}, anchor=west, draw=white!80.0!black},
 tick align=outside,
 tick pos=left,
 x grid style={white!69.01960784313725!black},
@@ -236,7 +236,7 @@
 
 \nextgroupplot[
 legend cell align={left},
-legend style={at={(0.91,0.5)}, anchor=east, draw=white!80.0!black},
+legend style={fill opacity=0.8, draw opacity=1, text opacity=1, at={(0.91,0.5)}, anchor=east, draw=white!80.0!black},
 tick align=outside,
 tick pos=left,
 x grid style={white!69.01960784313725!black},
@@ -282,7 +282,7 @@
 
 \nextgroupplot[
 legend cell align={left},
-legend style={at={(0.5,0.09)}, anchor=south, draw=white!80.0!black},
+legend style={fill opacity=0.8, draw opacity=1, text opacity=1, at={(0.5,0.09)}, anchor=south, draw=white!80.0!black},
 tick align=outside,
 tick pos=left,
 x grid style={white!69.01960784313725!black},
@@ -328,7 +328,7 @@
 
 \nextgroupplot[
 legend cell align={left},
-legend style={at={(0.5,0.91)}, anchor=north, draw=white!80.0!black},
+legend style={fill opacity=0.8, draw opacity=1, text opacity=1, at={(0.5,0.91)}, anchor=north, draw=white!80.0!black},
 tick align=outside,
 tick pos=left,
 x grid style={white!69.01960784313725!black},
@@ -374,7 +374,7 @@
 
 \nextgroupplot[
 legend cell align={left},
-legend style={at={(0.5,0.5)}, anchor=center, draw=white!80.0!black},
+legend style={fill opacity=0.8, draw opacity=1, text opacity=1, at={(0.5,0.5)}, anchor=center, draw=white!80.0!black},
 tick align=outside,
 tick pos=left,
 x grid style={white!69.01960784313725!black},
diff --git a/test/test_legends_reference.tex b/test/test_legends_reference.tex
@@ -2,7 +2,7 @@
 
 \begin{axis}[
 legend cell align={left},
-legend style={draw=white!80.0!black},
+legend style={fill opacity=0.8, draw opacity=1, text opacity=1, draw=white!80.0!black},
 tick align=outside,
 tick pos=left,
 title={Masked line demo},
diff --git a/test/test_steps_reference.tex b/test/test_steps_reference.tex
@@ -5,7 +5,7 @@
 
 \begin{axis}[
 legend cell align={left},
-legend style={at={(0.03,0.97)}, anchor=north west, draw=white!80.0!black},
+legend style={fill opacity=0.8, draw opacity=1, text opacity=1, at={(0.03,0.97)}, anchor=north west, draw=white!80.0!black},
 tick align=outside,
 tick pos=left,
 x grid style={white!69.01960784313725!black},
diff --git a/test/test_text_overlay_reference.tex b/test/test_text_overlay_reference.tex
@@ -6,7 +6,7 @@
 
 \begin{axis}[
 legend cell align={left},
-legend style={at={(0.03,0.97)}, anchor=north west, draw=white!80.0!black},
+legend style={fill opacity=0.8, draw opacity=1, text opacity=1, at={(0.03,0.97)}, anchor=north west, draw=white!80.0!black},
 tick align=outside,
 tick pos=left,
 x grid style={white!69.01960784313725!black},
diff --git a/tikzplotlib/_legend.py b/tikzplotlib/_legend.py
@@ -37,7 +37,15 @@ def draw_legend(data, obj):
         bbox_center = obj.get_bbox_to_anchor()._bbox._points[1]
         position = [bbox_center[0], bbox_center[1]]
 
-    legend_style = []
+    legend_style = [
+        # These are the mpl default setting for legends, see
+        # <https://matplotlib.org/3.1.1/api/legend_api.html#matplotlib.legend.Legend>.
+        # Keep an eye on <https://github.com/matplotlib/matplotlib/issues/15764> to see
+        # if we can get() the opacity from the legend object.
+        "fill opacity=0.8",
+        "draw opacity=1",
+        "text opacity=1",
+    ]
     if position:
         ff = data["float format"]
         legend_style.append(
