Footer Layout
You have many options regarding footer layout and appearance. You can choose to show the footer widget area, the socket, both of them, or non of them. You can stick one or more sections with any content you like, immediately before the footer using the 'Section shown before footer' option
For the footer widget area
For the footer's widget area, you can set the number of columns, which in turn creates an equal number of widget areas, so you can set the content of each column. You can set 1 or more sections the content of which which be shown inside the footer, right before the widget columns. You can set the color scheme (you can change the background color in Styling->Colors). You can choose to show a styling shadow.