Code review comment for lp:~fboucault/ubuntu-ui-toolkit/ubuntu_colors

> 367 +void UbuntuComponentsPlugin::registerQmlSingletonType(QQmlEngine
> *engine, const char* uri, const char* typeName, const char* qmlFile)
>
>
> Is it really a singleton? You can still use UbuntuColors { } right? The qml
> component doesn't keep track of its instances. Also, the function name may
> cause some confusion with qmlRegisterSingletonType(). What about
> registerQmlContextProperty() as a function name?

You cannot import it nor instantiate it.
The idea of naming it similarly to qmlRegisterSingletonType is because it behaves similarly.