[smokeping-users] What does the grey colors means in smokeping graphs?

[Thomas Carrié]

Hello,

I have started using recently smokeping to monitor latency

It was easy to install on Debian, I like the graphs very
much, I am looking forward to be able to produce such graphs.

Also I wonder what the grey areas means ?

Is it the quantiles ? What instructions are given to to RRD to have
these grey zones ?

<http://oss.oetiker.ch/smokeping-demo/?displaymode=n;start=2013-07-29%2016:24;end=now;target=rootns.F>