HTML settings
From MoodleDocs
Location: Administration > Appearance > HTML Settings
Remove HTML tags from all activity names
Template:Moodle 1.9In Moodle 1.9.3 onwards, HTML tags in activity and resource names may be allowed by unchecking the "Remove HTML tags from all activity names" box.
Emoticons
Template:Moodle 2.0Defines what images are used to replace emoticons (or smilies) in the text. The list of emoticon images defined here is used by Display emoticons as images filter and TinyMCE HTML editor's Insert emoticon popup menu.