I use the twenty twelve theme and I would like to change the background color manually by modifying the right files in the
plugins folder. However, I can not find what to change in the style.css file. I even tried to modify the background color through the Wordpress interface to #e50000. After that, I looked for a line containing e50000 in my wordpress directory, but there seems to be none.
I can't figure out which line to change in my wordpress directory to change the background color.