that's mean should be careful ,,, because the possibility of dangerous ,,, from the psychological side the yellow color can stimulate mental and activity ,,, the yellow color can increase the concentration ,, but I also do not know what is the correlation with warnings on the street. Maybe so that the rider is more vigilant when going through the area.
Im not sure about that my friend @iodin,,, :)
Thanks for sharing @iodin
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Thanks for your comments.🤗
:) you are welcome my friend,,,