I am completely new to Drupal 7 and have searched the web hard for a good tutorial that teaches me how to add a custom background to Drupal sites, but to no avail.
I have a Drupal 7 multi-site set-up and I am just trying to change the background image of the Bartik theme to a custom image.
In my project directory I have the following folders:
mysite/files mysite/modules mysite/themes mysite/tmp mysite/settings.php mysite/default.settings.php
Could someone please tell me a way to create a custom background, exclusively, for the site "mysite" without editing any of the core files?