Anyone know what tweeter Wilson speakers are using

I read something that Focal stopped selling their drivers to other companies. I read that Wilson is still using a Inverted Dome Tweeter. Is that the Focal Inverted Dome Tweeter.
Yes, it's a several generation old Focal tweeter. AFAIK, it's the only company Focal still sells to.
I'm having trouble locating a cut sheet online, but I believe it is the Focal TD120Tdx tweeter.
Wilson does still use Focal tweeters in their speakers, but they are not off-the-shelf units. After receiving them from Focal, Wilson modifies the back side of it with a diffraction cone assembly.