Sequence: a way to make a visual difference between async and sync calls about diagon

[ArthurSonzogni]

What about something like:

->  : arrow
--> : dashed arrow

I wonder how to represent them both, in both ascii-only and unicode versions.

[bjornstromberg]

absolutely that would work in the 'input' format.

i would probably represent them the same way they are now,
just that the dashed ones, if required to be spaced apart to make it visible they are different.

another way, would be using color coding by specifying the requested color pair, with a default set like dark-grey / light-grey or anything that should work on most terminals (usually black background)

color coding will likely be a larger breaking change for a lot of components.

[ArthurSonzogni]

I think we can close this, thanks to #69