func --help options unreadable on terminal with dark background

pick a better color scheme, and maybe ditch this overly cute terminal graphics display

ie on publish its impossible to see what the cli switches are. Also even though we're looking at a subcommand (publish) it tries to list out the options for other cli commands.

Start by reproducing `func publish --help` in a terminal with a dark background and compare its output with the issue screenshot. Locate the help rendering and terminal graphics entry points; done means the switches are readable and help for the selected subcommand does not list unrelated command options.

Written by the indexing model from the issue text.