It's the sleeves that matter. The entire point of the rule is to avoid confusion on such things as 3 second calls. If you are lead and there are players standing sideways in a crowd in the lane, sometimes all you can see is a sleeve. If it's the "wrong" color, you could make the "wrong" call.
I know it sounds petty, but I was told once that was one of the main reasons for that rule.
__________________
Yom HaShoah
|