lib/outputrenderers.php
renderer_base{}
class plugin_renderer_base extends renderer_base
format/renderer.php
format_section_renderer_base extends plugin_renderer_base
format/formatname/renderer.php
class format_singleactivity_renderer extends plugin_renderer_base
class format_topics_renderer extends format_section_renderer_base {
class format_weeks_renderer extends format_section_renderer_base