Change default resolution of plots to 144 dpi

spyder/config/main.py

@@ -149,7 +149,7 @@
               'pylab/autoload': False,
               'pylab/backend': 'inline',
               'pylab/inline/figure_format': 'png',
-              'pylab/inline/resolution': 72,
+              'pylab/inline/resolution': 144,
               'pylab/inline/width': 6,
               'pylab/inline/height': 4,
               'pylab/inline/fontsize': 10.0,
@@ -670,4 +670,4 @@
 #    or if you want to *rename* options, then you need to do a MAJOR update in
 #    version, e.g. from 3.0.0 to 4.0.0
 # 3. You don't need to touch this value if you're just adding a new option
-CONF_VERSION = '82.1.0'
+CONF_VERSION = '82.2.0'

spyder/plugins/variableexplorer/widgets/tests/test_namespacebrowser.py

@@ -226,7 +226,7 @@ def test_namespacebrowser_plot_with_mute_inline_plotting_true(
 
     mock_axis.plot.assert_called_once_with(my_list)
     mock_print_figure.assert_called_once_with(
-        mock_figure, fmt='png', bbox_inches='tight', dpi=72)
+        mock_figure, fmt='png', bbox_inches='tight', dpi=144)
     expected_args = [mock_png, 'image/png', namespacebrowser.shellwidget]
     assert blocker.args == expected_args