When we look at our Design > Widgets page for our brand new theme, it looks like there's nothing there. Note that we're looking at the Left Sidebar, and there is nothing where the red arrows are drawn. The default sidebar content that came with the them is programmed in other areas. However, the first time we add anything where the red arrows sit, WordPress will no longer show the default sidebar content.
In this section, we'll start to add our custom content via plugins and widgets.