[Maxime Landry (mlandry-devolutions)]

• I have read the contributing guidelines, and I agree with the Code of Conduct.
• Have you checked that there aren't other open pull requests for the same changes?
• Have you tested that the committed code can be executed without errors?
• Have you confirmed that this issue is caused by UniGetUI itself, and not by the package manager or the package involved?

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With the macOS glass look (#5511) the sidebar floats in a rounded panel 8 pt from the window edges, but macOS keeps the close/minimise/zoom buttons at the bare title-bar position, 7 pt from the edge: the red button sits on the panel's rounded corner. The back and sidebar buttons were placed with fixed values (traffic lights centred at 14 pt, 76 pt inset) measured before macOS 26 and the glass sidebar, so they ended up 8 pt from the zoom button and 2 pt above the traffic lights.

• Read the real position: MacGlassWindowHelper.GetZoomButtonFrame reads where macOS placed the zoom button, and the back/sidebar row aligns to its centre line, 14 pt after it. The previous constants remain as a fallback. Each new frame is logged once, to help diagnose other macOS versions.
• Inset the window buttons: MacGlassWindowHelper.SetWindowButtonsPosition moves them inside the glass panel (red button 20 pt from the edge, centred on the 44 pt bar, the search field's line), like System Settings. Same technique as Electron's trafficLightPosition: the title-bar container is resized and the buttons repositioned, re-applied on resize, zoom and state changes because macOS lays them out again.
• Uses the same LibraryImport AppKit interop as the glass helper: no reflection, AOT-safe; NSRect returns go through objc_msgSend_stret on x64. Full screen is unchanged.

Tested on macOS 26.7.1 (Apple Silicon, normal window): the zoom button moves from x = 47, y = 6 to x = 60, y = 14, and the back/sidebar buttons follow. Not yet checked: maximized window, leaving full screen, Intel Mac.

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Relates to UNI-36

🤖 Generated with Claude Code

[Copilot]

🔵 Needs a closer look

Native title-bar changes still need validation on Intel Macs, maximize/fullscreen transitions, and published NativeAOT builds.

0 open findings

What changed in this PR

Refines the macOS glass sidebar introduced in #5511 by moving native window buttons inside the panel and aligning navigation controls with them.

Changes:

• Adds native button positioning and frame measurement with architecture-specific interop.
• Reapplies alignment on window changes, retaining fallback positions and logging frame changes.

File	Description
src/​UniGetUI.Avalonia/​Views/​MainWindow.axaml.cs	Aligns title-bar controls and refreshes positioning on window changes.
src/​UniGetUI.Avalonia/​Infrastructure/​MacGlassWindowHelper.cs	Adds AppKit helpers to measure and reposition native window buttons.

🧠 Review effort: Balanced

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