micro design tool UX you might never have noticed (I didn't)

@[email protected] hides the selection UI when you style your selection; then shows the UI again either after 2 seconds, or immediately when your cursor exits the sidebar.

Here's the same interaction in @[email protected]
and @[email protected] too because honey we steal from the best

What's the purpose?

Let's look at an app where it isn't done (this is @[email protected] but there are plenty of others). Notice how the selection UI covers up the border? You can't see what's been changed until you deselect the shape. Hiding the UI fixes this.

Another comparison: @[email protected] goes half-way: it implements the two-second timer but not the "show immediately when I return to the canvas", which makes it feel like the shapes have been de-selected.
one of the many little big details in canvas apps 🍰