Here's a link to the colors for all decals:
Colors and Fonts
The reflective ones come in many different colors to show up during the day and then become reflective at night when headlights shine on them.
I just put the new chrome ones on mine yesterday (my car's blue with chrome rims) and they look pretty nice!

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~Megan
Saddamized.org
Tell Saddam Where To Stick It!
2003 Dark Shadow Gray Mach 1
1996 Moonlight Blue Mustang