MacOS red stoplight not showing unsaved changes in Photoshop
On the latest version of Photoshop 25.4.0 on MacOS Sonoma 14.3, when you have an edited document, the red stoplight in the menubar does NOT indicate an unsaved change with a dot in it.
This is what it looks like with an open document that has an unsaved change in 25.4.0:

This is what it is supposed to look like with unsaved changes, and how it does look on PS 25.3.1:

