Ok, someone asked me how to do this via email, so I rather just post it here so I don't have to say the steps again.
I was one of the first to do this little cheap mod, so I deserve to write about it.
Well, first off, the tools and Materials you need are
1)STRONG FLAT HEAD SCREW DRIVER
2)PHILIPS HEAD SCREW DRIVER
3)A HOT HEAT GUN (BTW not a hair dryer, unless your patient)
4)A strong Knife maybe
5)EXTRA SILICONE GLUE
6)BBQ BLACK SPRAY PAINT FOR HIGH TEMP, or you can use Shiny black paint, not too sure how hot it gets in the headlight, but jdm style like the old 97-2000 type-R is flat black
7)And Ratchets for taking off the bumper and headlights
Steps to do it
1) Take off the bumper
2) Take out the headlight
3) Bring the headlight to a comfortable corner, place the other one somewhere nice and dry, lint free area ( you dont want water getting into these things, or junk, dust etc..)
As you can see the Main headlight unit is two pieces, and inside there is the chrome reflector, and the greyish reflective outer housing. It is the greyish reflective OUTER housing we want to paint.
4) Use the heatgun and start heating the edges of the headlight, in a motion, heatguns are hot!! dont burn ur headlight up..
where you will see the black silicone glue starting to SOFTEN up.
5)Use the STRONG flat head, try to pry it open. ITS HARD TO PRY OPEN THE SILICONE JUST SOFT,DRY,HOT so you may have to CUT IT, poke holes in it.. You can use a knife, or use the flat head screw driver as a knife, to shred the black silicone so its more of a ease to RIP AND PRY the headlight open, know what I mean?

(very important for a easier time)
6)After all silicone is loose and headlight is pryed open, (make sure none of that silicone touches the inside chrome reflective parts.. look at the outer housing which you have to paint, it is held by TWO screws. (well..At least I remember it as two screws)
7)Unscrew them, and take out this silverish grey outside housing.
8)Bring to an open area, and use ur skills to spray paint it with the BBQ black or..Whatever color. Pink? just kidding..And wait for it to dry
9)Install the black housing back into the headlight, screw its two screws back in, and Heat back up the stock silicone, try to use as much of the stock silicone as you can, also add a lot of the newly purchased silicone around the shredded edges of the ripped silicone, (to prevent condensation) And after the silicone is heated again, press the headlight back together REALLY HARD..PRESS PRESS PRESS...And.... you can silicone it again and again if you want.
LET IT DRY UP AND COOL DOWN b4 reinstallation
10)Install the headlight back on the car, and put that bumper back on. And your done.
Last words..
Its easy, not bad mod for a few bucks. pretty common sense.
No heat gun? Borrow it from a friend. Hair dryers suck. Oven? U can try..Some people tried it. But i dont recommend it. mmmm tasty headlight.. Goodluck
Patrick