Selection panel
With something selected

The sun selected and the Selection panel, with the object's type and name

When it appears

With something selected. It tells you what is selected.

Fields

FieldWhat it does
Typethe object type (rect, path, text, g, …), or "N elements" with several objects
Namethe name, or the id; "—" with several objects

Read-only

You cannot write anything here: the size is shown and set by Geometry.