[m-rev.] for review: integrate env vars for colors into the option list

[Zoltan Somogyi]

On 2024-06-08 13:00 +10:00 AEST, "Zoltan Somogyi" <zoltan.somogyi at runbox.com> wrote:
> For review by Peter. The diff is with -b.

In the absence of a review by then, I intend to commit this tomorrow morning.

Zoltan.