Set default text-pixels-per-unit from 30 to 40 to improve default font quality

panda/src/pnmtext/config_pnmtext.cxx

@@ -27,7 +27,7 @@ ConfigureFn(config_pnmtext) {
 ConfigVariableDouble text_point_size
 ("text-point-size", 10.0f);
 ConfigVariableDouble text_pixels_per_unit
-("text-pixels-per-unit", 30.0f);
+("text-pixels-per-unit", 40.0f);
 ConfigVariableDouble text_scale_factor
 ("text-scale-factor", 2.0f);
 ConfigVariableBool text_native_antialias