Dialog colors

Hello folks,

I have a little trouble with dialog default colors.

When I need to compile a pkg using /usr/ports, each option dialog appaers with
default color, lightblue and white. It'a really difficult to read.

Is there a way to change the default colors?

Other question, is it possible to have more contrasted colors for people whith
vision difficulties? May be did I have to make a issue in on repot (which
one?)?

Thankls for reading me and you advices.

-- 
Jacques Foucry