Amber Weld kits and yellow semi transparent kits are common in applications where visibility needs to be reduced. Black strips are completely opaque (non see-through) and block all visibility/light.
Amber strips are also effective at reducing harmful UV rays and are common in welding applications.
How to order
Face mount kits should be ordered larger than your opening. Header mount kits should be ordered as close to the size shown to fit in the opening. Strips can be trimmed if too long.