Data Model Designer and Color Theme Generator doesn’t have links unlike the DAX Cleanup, Knowledge base
They are not active yet. I’m sure Sam will make an announcement once they are active.
Is it active yet?
The Colour Theme Generator is active.
The Data Model Designer is going to be a part of the new Analyst Hub, which is still in development. Estimated date is October sometime.
Sam did a webinar yesterday on this. The analyst hub will be an additional cost.