The struggle of resizing windows on macOS Tahoe
The release of macOS Tahoe has introduced a significant design change regarding the corner radius of application windows. Many users find the new, larger radius aesthetically unappealing, but more importantly, it introduces a functional usability regression. The increased curvature reduces the effective hit area for window resizing by moving the 19 x 19 pixel target zone mostly outside the visible window frame. Analysis shows that about 75% of this target area now resides in empty space. Consequently, users attempting to grab the window corner from the inside frequently fail, as the system now prioritizes a gesture that begins outside the window's visual boundaries, making the interaction feel unnatural and error-prone compared to previous versions of the operating system.
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