ProBuilder - How to turn off highlight when UV Mapping a face

In the tutorial the guy says that when you click on the face then the UV editor then click on the little button that looks like 3 arrows called the Lock the Scene view...
That the yellow highlight is supposed to go away from the face so you can move the texture around, resize it, etc. from the handles, but the yellow is still there.
Is this a setting I'm missing?

Unity 2020.1.0b3.3385

 

Had the same issue. Hopefully you solved it but for anyone else looking for an answer if you go to Preferences and turn off Use Unity Colors under the ProBuilder preferences you can change the Selected Face Color's alpha channel to 0. Annoying work around since this applies outside of UV editing too but you can always switch back and forth.