I have checked on my machine (Ubuntu/Linux) that the courier font is having problems in the vertical color bar. It overlaps with the color bar but the Aerial font is good to go like Helvetica. Is it a bug?
I've just found that it's been reported:
As described in its release notes, PyFerret 7.6 has fixed it:
$ pyferret
NOAA/PMEL TMAP
PyFerret v7.6 (optimized)
Darwin 18.7.0 - 06/25/20
27-Jun-20 11:45
yes? set data levitus_climatology
yes? set text/font=Courier/isiz=4
yes? fill/k=1 temp
I'll put this font setting in my ~/.ferret and be done with font-related problems.
macOS 10.15.5 .
Ryo