Title bar contents barely readable on macOS 27

Core Shell Report Bug
1

Hi! After upgrading to macOS 27 Golden Gate, the text and icon color in Core Shell's title bar adapts to the system's active light/dark mode rather than the current terminal color scheme. This means that if you work in system light mode with a dark terminal color scheme (or in system dark mode with a light terminal color scheme), the contents of the title bar almost disappear, depending on the remaining contrast. Note that in this screenshot, the title bar shows a terminal icon, the username, the currently active shell application and the window size next to the traffic light window controls:

CleanShot 2026-09-18 at 11.27.59@2x
CleanShot 2026-09-18 at 11.27.59@2x826Ɨ455 94.3 KB

Is it just my machine that does this or can you confirm this is a bug that needs fixing?

2

This is a macOS 27 compatibility issue. It has been fixed and will be included in Core Shell 5.1.1, which we expect to release within the next couple of days.

3

Thanks for reporting this! The title bar readability issue on macOS 27 has been fixed in Core Shell 5.1.1. Please update to the latest version to get the fix.

4

Yes, is has! :slightly_smiling_face: Thank you for addressing this so quickly!