I've moved from Plone 3.1 to Plone 4.1 a site using zope.formlib for a number of non-archetypes content types, and including some customizations of the widgets.
Now I notice several changes in the layout of the edit forms, such as:
- a tooltip replacing the field description (formHelp class)
- larger text boxes, exceeding the border of the page body
- duplicate descriptions in the checkbox widgets.
Since I'm not able to find relevant changes in the python modules and the page templates, I suspect that said changes mostly depend on the kss machinery, I'm not familiar with.
Any suggestions on what to focus on, in trying to obviate undesired changes?