The stately := operator feature proposal

[MrzlganeE]

Regarding the $, I am worried for suggesting it cause I don't 
want to mess up any proposal

It would be easier to suggest, if the $ didn't look so odd.
The "$" is a funny looking symbol.

I was imagining how the shape of the C, and the S, and almost a T 
is within the $, and it's crossed out to show you should not 
alter it. Yet those thoughts are very abstract.

So, I would be happy with any of the 3.
- := is nonconst
- := is const
- := and $=