Improve flat style by adjusting default fonts

Author: PierreRaybaut

CHANGELOG.md

@@ -8,6 +8,7 @@
     `QwtPlot.axisMargin` to get the current value)
 - Added an additional margin to the left of ticks labels: this margin is set to one
   character width, to avoid the labels to be truncated while keeping a tight layout
+- Slighly improved the new flat style (see V0.7.0) by selecting default fonts
 
 ## Version 0.11.2
 

qwt/plot.py

@@ -341,13 +341,9 @@ def make_font(family=None, size=None, delta_size=None, weight=None):
 
         if state:
             # New PythonQwt-exclusive flat style
-            plot_title_font = make_font(
-                family="Helvetica", delta_size=4, weight=QFont.Bold
-            )
-            axis_title_font = make_font(
-                family="Helvetica", delta_size=2, weight=QFont.Bold
-            )
-            axis_label_font = make_font(family="Helvetica", delta_size=0)
+            plot_title_font = make_font(size=12)
+            axis_title_font = make_font(size=11)
+            axis_label_font = make_font(size=10)
             tick_lighter_factors = (150, 125, 100)
             scale_margin = scale_spacing = 0
             canvas_frame_style = QFrame.NoFrame