A profile can define different settings which are sorted into three main groups: Style, Content and Layout. You can create new profiles, edit already existing ones and assign them to any menu item. Yes, you read it right. Assign any profile to any menu item directly from your theme configuration with just a few clicks. That's not all, profiles have the ability to inherit defined settings from the default profile. This way you can easily make small changes or tweaks and apply them to a page or section of your website! Learn more here
The style settings are all about the overall look and feel of your website you can choose from the different styles, colors and fonts.
This settings group lets you change content related things like date or the to-top scroller. It also allows you to hide the main system output, this is really great if you want to build a page which only uses modules or widgets!
The layout settings panel is all about the theme's sizes and positioning! You can set the overall width and the sidebars' width and ordering as well. Also the module layouts can be set here, as we have mentioned before you can position equally sized modules right next to each other or stack them on top of each other.