Change background image

Hello,
Go to Customize -> Colors -> You have the options of multiple colors changing including Background Color too.
I hope it helps to resolve your issue.

Hi,
I need to change the color for a custom Image.

Saving the picture as a PNG-24 file should solve your problem.

ok, but how to set the backgroud to this file, not the header image, but the background where posts are in home.

someone knows how to change the background of oblique theme? thanks