Flat WordPress theme has been designed and developed keeping in mind modern design aesthetics since modern standards state that use of gradients hasn’t been good for mobile browsers and outdated browsers.
Hence flat designs are nowadays being used everywhere. Also it makes life easy as solid colors are getting used everywhere which are very easy to change at the click of a button. So changing the color of the whole site as per your logo is just a matter of minutes using this theme.
Since this is a modern and professional theme it has to have its own sets of shortcodes which enable them to be used everywhere on the website and give a style and distinction and separate itself from the rest of the content. So basically you can set up any type of content using these shortcodes. Above all compatibility with other shortcode plugins ensure that you can easily set up the content you like and the way you like it.
Now since its a new Flat WordPress theme it has to be fully compatible with all the available plugins like WooCommerce for online and digital shopping experience and for websites which want to sell something.