Xresources
From Attie's Wiki
The ansi colors page might be of interest.
Below is the entire contents of my '~/.Xresources' file:
! Xterm stuff XTerm*background: black XTerm*foreground: white XTerm*cursorColor: #ff00af XTerm*scrollBar: false XTerm*saveLines: 200000 XTerm*vt100.geometry: 120x40 ! this makes menuconfig (etc) readable XTerm*color11: #d78700
Or for a 1920x1080 'ready' terminal, use:
XTerm*vt100.geometry: 280x70
Or for a side-by-side ready terminal use:
XTerm*vt100.geometry: 140x70