When you activate the Start Blogging Pro theme, you will have a full width layout. However, this theme also includes a Background option which lets you colourize it or you can use an image background. To show this, you can change your page layout to a boxed layout with a variety of sizing from 1200px to 1800px…and of course, full width.
Boxed Width 1200px
Boxed Width 1400px
Boxed Width 1600px
Boxed Width 1800px
