The Shape Elements are : Circle, Square, Rounded Square, Polygon, Star, Gear, Wedge and Background bar.
Elements that can be used to create a background field for other elements like images or text,to highlight some of your elements by putting them in a shape, or if you just want to decorate your page.
All elements can change color, can change the width and hight unlimited, can have animations or effects like transparency, drop shadow or you can keep element fixed while scrolling the page, you can also link it to an external link, to a page withing this site, to an email, to download a file, to an action.
There are some particularities, you can edit them by pressing the Properties button :
The Rounded Square can, as the name says, round the corners.
The Polygon can change the number of sides and the angle.
The Star can change the number of Corners, can change the Inner Radius and can change the angle.
The Gear can change the number of Sides, can change the Inner Radius, can change the Hole Radius or the Hole Sides and can change the angle.
The Wedge can change the Start Angle and the Arc.
The Background bar have a preset width that covers the whole page, leaving only the hight to be edited, also it doesn't have the Link option.