Inspection modes
Two views, one key. Press V to toggle Default and Peek. Press Space to freeze the element.
Default
The standard view, for developers. Tag and class selector, dimensions,
and the authored CSS rule list with color swatches. Pseudo-classes and
resolved var() values are included. This is the view you
will use most of the time.
Peek
A stripped summary, for designers: the typeface, size and weight, the key colors, and a WCAG contrast readout. The smallest, fastest view, for scanning across many elements when you only need to identify something.
Toggling
Press V to toggle between Default and Peek. The choice persists for the session, so pick the one that suits your task and keep going.
Freezing
Press Space to freeze the element so the tooltip stops following the cursor. From Default this opens the editor; from Peek it freezes the summary in place so you can read it and copy swatches. Press Space again, or Esc, to unfreeze.
Both views are free. Freezing in Default opens the full four-tab editor: see pinned tooltip & live editing.