Monitor FPS of the rendered scene?

In the classic gazebo it was possible to view fps of the rendered scene on the GUI. However, there seemed to be no such option on the new ignition gazebo. Am I missing a setting or such function has not been implemented? I appreciate if anyone can point me to a direction. Thanks!

This was recently added in https://github.com/gazebosim/gz-gui/pull/523. It’ll hopefully be released soon for Fortress and Garden.