WorkspaceGeek · Host theme lab
Set msclient_key once on the host canvas, then drop a bare
<wsg-ecom>. Pick a simulated host palette; the widget
uses styling-mode="host-inherit". Every preset ships a light and
a dark palette; the Light / Dark toggle switches the simulated host page
independently of which preset is selected. Lab chrome follows system light/dark.
Temporary for this page only — widget inherits palette & fonts from the canvas. Lab chrome is separate.