Steps to reproduce:
enable vertical tabs
open at least two tabs.
select a tab that is not the last one
close that tab (cmd-w, or clicking it)
observe that the heading text is not the small bold grey text anymore
Expected behavior:
"Open Tabs" appearance should never change
Orion, OS version; hardware type:
Version 0.99.123.3.3-rc (WebKit 616.1.4.5)
MacBook Pro (macOS Ventura 13.2.1 build 22D68)
Image/Video: