Yellow "noses" of Me 109? Who and Why?

[Mirek Wawrzynski]

Hi
Yellow noses on Me 109 (who and why exactly yellow?)
Probably by the end of BoB (IX-XI 1940?) was introduced the yellow color on Me 109 (yellow cowlings and rudder).
I am wonder, who had invented this and spreaded this idea among LW units?
Why it was exacly yellow and not any kind of red? As you know red is more visible from the long distance then any others colors?

Thanks for any comments to this, I think, simple questions (not yet clear for me). :-(

Later also the yellow was used on Balkans war (April 1941 and on the beginning of Barbarossa).

PS
Reason of intriducing the yelllow is obvious - fast and better recognitions (own or enemy) for own crews (bombers, own fighters ect.).

Regards
Mirek Wawrzynski