Spell checker
Bluefish uses enchant as spell checking backend, so most spell dictionaries should be supported. I think aspell dictionaries are preferred for enchant. Use your package manager to install the dictionaries.
The 'string' textstyle is automatically checked. You can disable that in the preferences.
Spell checking before 2.0.1 missed the "Ignore spelling" and "Add to dictionnary" functions.
{{Man2bottom
|prev=Hidden features
|up=Indenting
|next=Programming and Markup Languages Function Reference
|prevname=Hidden features
|nextname=Programming and Markup Languages Function Reference