'Grades' option missing from Administration menu for 'non-Boost' themes

In the 3.2 moodle doc for 'Administration block' (https://docs.moodle.org/32/en/Administration_block) it clearly shows the 'Grades' appearing in the list above 'Gradebook setup'... so looks like a bug/oversight in the code of 3.2.

This is causing a real issue for those who wish to upgrade to 3.2 but continue using an older theme based on Clean.

Can anyone contribute a peice of code to work around the issue. I do not want to reinstate the 'Navigation block', as our users have become acostomed to the 'Grades' link in the Course admin menu, We are currently working around for spacifc courses by adding an HTML block with a 'Grades' link spacific to each course, but this is not sustainable.