Class Hierarchy
This inheritance list is sorted roughly, but not completely, alphabetically:

UserMetricsInput::MetricParameters |
QObject |
UserMetricsInput::Metric | This class represents a single user metric
UserMetricsInput::MetricManager | Central place for registering and updating user metrics
UserMetricsInput::MetricUpdate | An update to a Metric
UserMetricsOutput::ColorTheme | ColorTheme for a particular user metric
UserMetricsOutput::UserMetrics | Presentation API for user metrics