Style in page not coming from stylesheet, where from?

I am helping a friend set up this blog
https://www.parkcityflyfishinginfo.com
I want to adjust the style of the page container and there is a style that is an inline style in the page (not in the stylesheet) and I can’t seem to figure out where it is being pulled from.
In the source code, I can find it in the head I just can’t figure out how it is getting there:

<style type=”text/css” media=”screen”>

#page { background: url(“https://parkcityflyfishinginfo.com/wp-content/themes/minimalism/images/kubrickbg-ltr.jpg&#8221;) repeat-y top; border: none; }

</style>

In firebug, it shows this style coming from the page itself (as can be seen in the source code) but I can’t figure out how it is getting there. Any help is appreciated.

Here it is in firebug:
#page {
-moz-background-clip:border;
-moz-background-inline-policy:continuous;
-moz-background-origin:padding;
background:transparent url(https://parkcityflyfishinginfo.com/wp-content/themes/minimalism/images/kubrickbg-ltr.jpg) repeat-y scroll center top;
border:medium none;

Thanks