Disclaimer: Much to my regret, I don’t work for Disney Feature Animation but DTVA (Disney TV) so I don’t have access to any of the tools demonstrated here and as such I am not breaching any NDA. The content is just extracted from publicly available material.
If you are interested in dAnimPicker, the Disney character picker, and if you want to know how the brows are controlled at Disney, here is a short clip I extracted from a Moana Behind the Scene video.
I think I am recognizing Disney head of animation Malcon Pierce here, and if you pay attention, you will probably notice that he is shaping the brows using only a main control, 3 secondary controls and probably navigating between them using his keyboard using a pickwalking feature.
The light blue control is the main brow and the darker ones are the secondary (inner and mid brow). The dark circular just above is probably the outer brow.
I would be really curious to hear what are the controls right underneath though…. tertiary controls?