i know this has probably been posted before.
and there is probably no real answer but, does line color really matter?
i have always used colors like willow, buckskin, and olive for floating lines because of their drabness. i have a chartruese line on my five weight and im not sure it makes a difference in fish spooking/catching.

just wondering what the thoughts are on this one or if theres some scientific explanations.

i think bright is not great, but i am young and can see a drab line. so for the older people with eyesight failing them fast i bet the bright colors help alot.