the fog lights are white.
1.buy yellow "narva brand" h3 bulbs [ www.suvlights.com
2.if you are mechanically inclined, you can remove the yellow glass balloons and the bulb holder from your old lenses [fog reflector]. then remove the glass lens from your euros, remove the fog reflector, perform surgery on bulbholder [swap], put yellow glass on, put lens back on. fire them up.
i am eventually going to do the long term fix.
i've read it isn't so much the color but the fog pattern, that gives the best results.
the performance of the euros far outweigh the clear fogs.