usually in .Xresources you can specify colours for your term. Eg:
Code:
aterm*foreground: green
aterm*background: black
xterm*foreground: green
xterm*background: black
urxvt*foreground: green
urxvt*background: black
etc. man xterm or xterm --help for full options.
After changing the file you may need to do:
xrdb -merge ~/.Xresources