Make default font size more consistent with Plotters #6
Description
With plotters-wxdragon 0.1.0, font size is tweaked manually with a coefficient 0.6 in order to make the sizes of the fonts for legend, ticks and title correspond to plotters' bitmap backend.
I tested this on Ubuntu Linux and images as well as plots in an application look fine, but I am not sure whether this choice would be a problem for other platforms and other screen resolutions (e.g. High DPI screens).