So, you are looking for headlight wiring colors?
Gray, Gray/White stripe, stuff like that?
Dimmer Switch 'Gray', 16 Gauge, out to headlights, LOW BEAMS.
Dimmer Switch 'Gray w/Trace', 14 Gauge, out to headlights, HIGH BEAMS.
'Trace' is a color stripe on the normally 'Gray' wire, in case you don't know.
In my estimation, BOTH WIRES, 14 & 16 Gauge are too small for modern headlights...
You are stuck with the factory switch which doesn't like to pass more current for modern head lights, so you are kind of stuck even if you 'Up Size' the wire...
(That's why we use Relays and direct power feed to brighten headlights, to take the load off the factory head light switch...)
Just for future reference,
High Beam Indicator is Gray w/Trace, 18 Ga. From dimmer switch 'High Beam' connection to dash 'High Beam' indicator lamp.
Now, this is where it gets stupid...
Left Hand SIDE marker lamp is 'White', 16 Ga.,
Left Hand Front Park is 'White', 16 Ga. (Same wire as above, just spliced into)
Left Hand Front TURN SIGNAL is 'Green w/Trace', 16 Ga.
Right Hand side marker lamp is 'White' 16 Ga. (Same 'White' as above, just spliced into)
Right hand FRONT park lamp is 'White' 16 Ga. (Same 'White' as above, just spliced into)
Right hand front TURN SIGNAL is 'Green' (no trace like left side has) 16 Ga.
Factory FOG lamps are supposed to be 'Orange' 14 Ga. from firewall to fog lamp harness, then turn to 'Red' wire to the lamps.
WHITE is park/side marker,
GREEN is RIGHT turn,
GREEN w/Trace is LEFT TURN.
GRAY is Low Beams,
GRAY w/Trace is High Beams,
Orange is for factory fog lamps... Sometimes found in the harness even if it wasn't used...
Black was the 'Ground' for the headlights/park/turn lamps.
Wiring diagram for '84-86 CJ,