'Mono' is not in list
I added a richtext widget and when trying to enter something i get the following error:
'Mono' is not in list
ERROR:tryton.common.common: File "/home/sergi/nan/projectes/virtualenv/nan/tryton/tryton/gui/window/view_form/view/form_gtk/richtextbox.py", line 419, in detect_style
self.tools[tag].child.set_active(attr.index(name))
Nevertheless i can save the form and the widget text gets saved.
I found this bug on version 3.4, haven't tested on trunk.