Wilson,
Simple ? perhaps not. It would be nice for them to be configurable
from a config file. Perhaps Hessu will put that on his todo list.
You can edit them though.
If you look in the utils.c file in either the listen or the apps
directory (depending on which version of ax25-tuils you have) at
about line 94 you will see where the colors are defined.
Each of the lines 'init_pair(' lists the foreground and background
colours used for each of the T_xxxx types. Edit this file and
recompile/reinstall and you should be fine.
regards
Terry