Is it possible to use background images and background color with opacity

[Forest-Media]

Hello, I’m interested in using background image along with background color with opacity (not sure what the right term is for that) in various sectionsof the page. I have see it being used in the following page (in the section right above the footer).

http://unicon.hellominti.com/home/home-slider-only/

I would greatly appreciate it, if you could provide me hint on how to achieve this.

Thank you.

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