The interior surface of the cover may further include {HEAD ~ a design element} that is viewable on {TAIL ~ the exterior surface} only when the light source is illuminated 
is viewable on
The interior surface of the cover may further include { HEAD ~ a design element } that is viewable on { TAIL ~ the exterior surface } only when the light source is illuminated
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH