Sure. Brown shirts with a single silver stripe were the fashion rage back then.
Any way you slice it....The plaid shirt that has been presented as the shirt that Lee was wearing at the TSBD that morning does NOT have a SILVER stripe in it.
I believe I know what Whaley was trying to say when he described the man's shirt.... Because I owned a similar shirt .... The shirt had silver threads ( similar to Christmas tree tinsel ) running through the fabric.
But .... The whole argument is irrelevant because the plaid shirt ( CE 150) is NOT the shirt that Lee was wearing at the TSBD that morning. It is the shirt he was wearing at the Texas Theater and the shirt that the FBI claimed the tuft of fibers that were found on the butt of the rifle came from. But the shirt that Lee was wearing at the TSBD is CE 151, the reddish brown shirt with the BUTTON DOWN COLLAR....and it sure as hell does NOT have any silver stripes on it.