Show Toolbar When Copying URL

With Hide Toolbar on, ⇧⌘C or ⌥⇧⌘C shows the toolbar for a moment, so you see Dia's Copied message in the address field. Then it hides again.

Turn it on

Open Dia → Settings → Patches → Hide Toolbar and switch on Show Toolbar When Copying URL. Or run:

diatweaks enable peekToolbarOnCopy

Needs

Hide Toolbar. Settings only shows this switch while that's on, and diatweaks enable peekToolbarOnCopy offers to turn it on too.

Works with

Show Toast When Copying URL. With both on, this one wins and the toast stays off.

FAQ

Why can't I turn it on?

From Dia 1.56, Dia shows its own Copied message at the top of the page while the toolbar is hidden, so this switch stays off.