use nice and pretty mono font in graphical languages (SFC, FBD, LD) as well

it looks like that was original idea, but some bug squashed in and
default font was used for POU.

at the same time fix use of mono font in the header of Variable panel
for SFC/FBD/LD POUs.

     1

from __future__ import absolute_import

     2

     3

from etherlab.etherlab import *

     4

from util.BitmapLibrary import AddBitmapFolder

     5

import util.paths as paths

     6

     7

AddBitmapFolder(os.path.join(paths.AbsDir(__file__), "images"))