Well, if your PC case got 2x design awards then why not ask another $50 for the LEDs that are controllable by MoBo as well, right?
In specs pages;
90 - "The brilliant RGB Lighting System, easily controlled by manual buttons, provides an engaging visual experience."
90MC - "The brilliant RGB Lighting System easily controlled by manual buttons
or Motherboard SYNC, provides an engaging visual experience."
There's also New Ark 90SE case who's front LED also supports MoBo RGB solutions but it doesn't come with any stock fans,
specs:
http://www.gamerstorm.com/product/CASES/2018-11/1288_10015.shtml
90 and 90MC do come with 4x 140mm RGB LED stock fans.