May I make a suggestion? I think Ashman is refering to the Philips Silver Vision bulbs, which is shown in the picture below:
it has a silver layering over the bulb, so it will not have an orange hue that can be seen through your clear corners, and match in perfectly with your reflectors.
This is a car with clear corners but a normal orangy indicator bulb:
This is a car with the Philips Slver Vision bulb, notice you can't see anything?
However, when you are signalling, it will shine ORANGE!!!
Isn't science wonderful??? You can check 'em out at
http://www.fosmo.com