I've just published a version of Fordson for Moodle 3.5.
Lots of great new features. Totally new way to customize your page layouts. New Hidden course block panel. Boost style preset compatibility. Much, much more.
Grab a copy and take it for a spin:
This is a BETA release as Moodle hasn't officially released Moodle 3.5. Sorry, I don't have any official documentation but I will be working on that next week.
Really, this is like a brand new theme. Thanks to Moodle HQ and the people who worked on Boost! Their hard work and consistency with buttons and a whole host of other things really shines through on child themes.