@j.b.-o. Same here.
My BB version is 9.3. This is the problem? @julian

Sorry for the ress, but I solve this in Persona with HTML and CSS, just declarating the Sidebar widget-area in categories.tpl and CSS to fix the categories width.
I'm newbie with front-end, but this "fix" is functional atm.

I have two suggestions what I see in other fórum CMS.

1 - Support to links(Field type): I define URL of the custom field in ACP:
[link_what_i_want(ex: https://twitter.com)]: [user_information(MyTwitter@UserName)] and the hook give me a result like this: "Twitter: ins"

2 - Support to images or icons in setup to show in templates, like this http://i.imgur.com/7aLADPS.png - This is an extension of first suggestion;