The hover text for "note" and "area" both say "drag to add a new text note". Then the one for "text" says "drag to add a new text area". I'm not sure if that's on purpose, but it's confusing. Though all three function in a way that's consistent with their respective icon.

Also, on the "area" widget, there's a popup when I click on it, with a background color picker and font size choice. But there's also an icon with 4 squares arranged 2x2. It's not clear what that does.