issue-#206 change text formatting from Default Font to Arial

[Josef Templ]

I have created an issue for the text formatting reported by Ivan.

For the issue see https://redmine.blackboxframework.org/issues/206.

For a fix see branch issue-#206.

The diffs don't show the format change.
https://redmine.blackboxframework.org/p ... 35679a3396

- Josef