Is there a nice syntax to achieve optional named parameters?

[John Burton]

On Tuesday, 15 January 2019 at 11:26:50 UTC, rikki cattermole 
wrote:
> Longer term, you're better off with the builder.
Thanks for your reply. But what is the builder?


> Creating windows is a very complex task that can balloon in 
> scope.

Well that was mostly just an example that I thought people could 
relate to more than my obscure real case :) But the principle is 
the same so the answer is likely too