Walker Tracker step logging — increase the red [5]

Thanks to the new and improved Walker Tracker API: an adorable micro graph of my walking activity for the past few months. Find it at the top of every page. Each day is red if I exceeded my step goal, gray if not.
This bitter gray motivates me to get outside even on a hot day like today — which is good, since I’ve hit a rough patch lately on the pedestrianism front. “Increase the red” is the new increase the n.
It’s the simplest possible lashing together of Walker Tracker and Joe Gregorio’s sparkline Python CGI, with Scott Hurring’s PHP Serialize module for wire ties.

