HowardMei/slimjp — pull request #8 by pixolin (2014-12-12 12:15:05+00:00)
Title: Setting this.snowColor = '#eee';

A majority of themes uses a white background, on which you won't be able to see white snowflakes.
Setting the color of snow flakes to #eee makes them viewable on white background while they still appear to be white (and not yellow :) ).