New Add bookmark #7 I looked into this some more. This is cast in stone in Tahoe. In order to use special characters or justification in your window title you have to create a Title bar. This seems like a lot of hassle to do something that should be simple.

I use an accessory view to create a file type popup menu in the save dialog to add file types by creating a .xib with the accessory view. I can't see how to do this with a TitleBar because there is no TitleBar in the catalog of UI items in Interface builder. Any suggestions?

Same here. The developer documentation says that you can leave the old .icns file in your project and add the .icon file. The old icon should appear on older versions of the OS but the new icon should be displayed by the finder in OS 26. It isn't. I have both types listed in the Info-plist. I deleted the old app version and re-booted the Finder. It doesn't help. I am running MacOS 26 Tahoe. ???

The developer documentation for Icon Composer: Add your Icon Composer file to an Xcode project If you create your Icon Composer file outside of Xcode, you can add it to your Xcode project anytime to view your icon in Simulator and on real devices. Just drag the Icon Composer file from Finder to the Project navigator, and Xcode provides feedback on where to drop it in a target folder. No, it doesn’t - it asks how to add it and it adds it at the top level of the navigator but it won’t change how OS 26 displays your app icon in the finder. Alternatively, choose Add Files from the Add button at the bottom of the Project navigator and select your Icon Composer file in the dialog that appears. It asks how to add it and it adds it at the top level of the project but it won’t change how OS 26 displays your app icon in the finder. In the project editor, select the target and the General tab. Under App Icons and Launch Screen, ensure that the name in the App Icon text field matches the name of the Icon Composer file without the extension. You can have multiple Icon Composer files in your project but only one that matches the name in the App Icon text field. It still doesn’t show the Icon Composer icon in the Finder. You can check Include all app icon assets but it still won’t display the Icon Composer Icon in the Finder.

I got up this morning and started working on the project and now it has the Icon Composer icon. I'm guessing that the Finder had the old one cached and that re-starting the Mac re-built the Finder's data base???