Continuous using the excellent temple Blue Design II, but I have been two questions.

How can I add a solid background color or gradient to the whole temple.
How can I add a background image to the entire workforce.

Hello felipergueza,

You must write css code to add background color, background image for template.

Best regards.

What would be the preceso to follow.

What would be the structure of the code to add a gradient background color or image for each side only (where the white background).

The site is www.cgtractors.com

Hello felipergueza,

Do you know CSS, LESS CSS? If you don't, i'm suggest your should request a custom service there: vinagecko.com/contact-us
Our developer will help you custom our template as you want.

Best regards.

How can I assign a position to both sides of the Blue desing II.

Hello felipergueza,

Please read the documentation for this template: joomla.vinagecko.com/docs/?template=blue_design

Best regards.