New Primaries module

One thing that has confused me by the presentation of the new RGB Primaries module (that I haven’t yet available), is the term “purity” on the label of sliders.
This is a term I haven’t yet come across in DT documentation - it doesn’t come up in a search in the manual.

But I came across a note from this posting here in the forum:

which I believe is AP’s, where he stated in January 2021 that:
“I learned recently that purity is actually called brilliance since the 1950’s”

Is there a reason to introduce a new / too old term, if it really ought to be in constancy with “brilliance” now used in the other scene referred color modules?
Should we clean this up before the module is officially launched in DT 4.4?

Perhaps Sakari has some views on this? @flannelhead

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