To fill any color above the background image select the container containing the image, go to the Widget Properties Panel/Background/Overlay color and choose the color and transparency!
![ScrSht 2015-09-03 at 19.24.37](https://docs.froont.com/wp-content/uploads/2015/09/ScrSht-2015-09-03-at-19.24.37.png)
To make your background image fixed you need to select the container and go to Properties Panel/Background and select Fixed tab.
Learn how to add parallax effect to an image background.