This documentation is not using the current rendering mechanism and is probably outdated. The extension maintainer should switch to the new system. Details on how to use the rendering mechanism can be found here.
From 2.0.x to 2.2.x¶
There is a new Matomo Plugin called TYPO3Menu which is shipped with version 2.1.0.
This plugin switches the gui of Matomo into a more TYPO3 like style. You need to activate it manually, as EXT:piwikintegration tries to not touch your config if not really needed. The shipped Extensions have the same Version as EXT:piwikintegration by architecture. That makes it easy for you to find the correct plugins.