#11830 UI/Qt: The space reserved for the MacOS traffic light icon is unnecessary in full-screen mode

Summary

On macOS with Qt, when you put Ladybird in full-screen mode, the first tab on the left leaves a gap to make room for the three-color indicator. However, when an app is in full-screen mode, the indicator is hidden and appears when the user moves the mouse to the top of the screen. So there’s no need to leave that space in full-screen mode.

Operating system

macOS

Steps to reproduce

Open Ladybird in full screen

Expected behavior

In full-screen mode, there shouldn't be any space between the edge of the window and the first tab (see the Chromium video below)

Actual behavior

Currently, there is still a dedicated space for the macOS status bar between the edge of the window and the first tab. However, the status bar disappears in full-screen mode, leaving that space empty.

URL for a reduced test case

N/A

HTML/SVG/etc. source for a reduced test case

N/A

Log output and (if possible) backtrace

N/A

Screenshots or screen recordings

Ladybird:

https://github.com/user-attachments/assets/2a0c0e4c-1aab-4d5e-9172-d9c501da41fc

Helium (and every chromium browser):

https://github.com/user-attachments/assets/bf282d71-1686-4b85-8068-0a7da6d123bb

Build flags or config settings

No response