Theme Layout Settings
The theme has the options which allow you to change the layout.
You can select dark or light skin. To change the style, please go to Theme Options Panel => View Options section. Use "Default skin" to change the parameter.
You can change the menu position, please go to Theme Options Panel => View Options section. Use "Menu Type" to change it.
Please note that if you want to have a custom layout for the certain page, you can do that using the custom layout option on the page.