Elementary is about displaying its widgets in a nice layout, for this purpose it provides a number of containers. It's important to note that as containers widgets don't have their own visual identity, so here we show one use for them and a diagram showing their component parts:

• Gengrid (Generic grid)

• Genlist (Generic list)

• Box

• Conformant

• Grid

• Layout

• Naviframe

• Panes

• Scroller

• Table

The other two main groups in Elementary are:

• Infrastructure list - These are modules that deal with Elementary as a whole.
• Widget list - These are the widgets you'll compose your UI out of.