Hello again Imran,
Thanks for all your help. I was able to resolve the border-radius and the coloring of the widget-content area, but still having problems with the widget header background color area.
It should be the same code as it is a WP install and then the Evolve theme. Hope we manage to resolve it soon. It seems to work on the main site.
By the way, the widget that I would like to use a custom color for the content background will be called Pastors’ Corner. Is it also possible to use an image for the widget content background?