[Mac] Title left-alignment on all windows

[SougandhS]

Version: 2026-06 (4.40)
Build id: I20260412-1800
Mac OS, Java 26

[vogella]

Not on Linux. Maybe an SWT issue of the Mac port?

[tomaswolf]

Titles are left-aligned on Windows, too. Different platforms may well have different alignment.

[nburnwal09]

I am able to reproduce the issue as well. Titles are left-aligned.
Using mac tahoe 26.3 and Java 21

[merks]

Yes, and the native window titles are left aligned:

[elsazac]

I could also confirm that this happens in Mac.

[HeikoKlare]

I guess this has been caused by:

• [Build] Update MACOSX_DEPLOYMENT_TARGET to macOS 11 eclipse.platform.swt#3185

When I download an I-Build for macOS from 7th April, everything looks fine. Starting from 8th April, the titles are aligned differently. In a runtime instance of Eclipse, everything is still fine for me.

This seems to be a new default with recent SDK. I do not find official information on it, but, e.g., this post:
https://www.reddit.com/r/MacOSBeta/comments/1l9i5vj/title_bar_text_is_now_left_justified_a_first_for/

Also native application like TextEdit show this behavior:

Note that this issue only occurs with the aarch64 I-Build, not the x86 build, which seems reasonable as the x86 build still uses a macOS 15 SDK whereas aarch64 uses a macOS 26 SDK.

@HannesWell fyi

[elsazac]

apart from the alignment issues and the broken filter text border, i have also noticed that the ide performs quite slowly on macOS. For eg, when typing in the filter field on the Preferences page, the results are not updated promptly. Similarly, when clearing the filter, it does not immediately restore the full tree view, showing a noticeable delay in responses. Also, there is now a black border appearing in the “Push Branch” option, which was not present previously.

Before:

After

[HeikoKlare]

Has that issue also been introduced with eclipse-platform/eclipse.platform.swt#3185, @elsazac?

[elsazac]

Has that issue also been introduced with eclipse-platform/eclipse.platform.swt#3185, @elsazac?

I’m not sure on if this is caused by eclipse-platform/eclipse.platform.swt#3185, but the following build works fine for me :

Version: 2026-06 (4.40)
Build id: I20260407-1040

However, starting from the below build:

Version: 2026-06 (4.40)
Build id: I20260408-1800

I see all of the issues mentioned above.

[SougandhS]

I tried with 07th build, it works well for me 👍