macOS Tahoe windows have different corner radiuses
macOS Tahoe introduces an infuriating UI inconsistency: window corner radiuses now vary based on the presence of a toolbar. This seemingly minor detail has ignited a firestorm on HN, as long-time users lament Apple's perceived decline in design consistency and attention to detail. The discussion pits traditional Apple aesthetic values against modern design trade-offs, making it a classic 'Apple is losing its way' debate.
The Lowdown
Jeff Johnson, primarily a macOS tester, brings to light a peculiar and, in his view, 'terrible' UI change in macOS 26 Tahoe: inconsistent window corner radiuses. He notes that while aware of the generally exaggerated corner radiuses in Tahoe, he recently discovered they are not uniform across all windows.
- The article demonstrates that a TextEdit window, which lacks a toolbar by default, has a less exaggerated corner radius than a Calculator window, which features one.
- Through an Xcode project, Johnson confirms that merely adding a toolbar to a window automatically increases its corner radius.
- This inconsistency isn't limited to toolbars; other window elements, such as sidebars, also reportedly affect the corner radius.
- Johnson asserts this is the 'stupidest user interface feature ever invented,' arguing it betrays Apple's historical commitment to consistency.
- He further supports his claim by citing a WebKit bug fix related to scrollbars being cut off due to window corner radii, suggesting even Apple's engineers are perplexed by the new design.
Ultimately, the author concludes that this seemingly small design choice contributes to a broader trend of macOS sacrificing consistency and usability, a significant departure from its past reputation.
The Gossip
Aesthetic Angst and Apple's Apathy
Many commenters express profound disappointment and frustration over Apple's perceived decline in UI consistency and attention to detail, exemplified by the varying corner radiuses. Long-time macOS users feel that the operating system, once a paragon of aesthetic design and polished user experience, is now 'in free fall' due to 'iOS-ification.' They lament the loss of what they consider a core advantage over other operating systems, with some even vowing to avoid updating to Tahoe or contemplating a switch to Linux, highlighting how deeply these visual details resonate with the user base.
Design or Delusion? Debating Intent
A significant thread debates whether this corner radius inconsistency is a bug, a poor design choice, or a deliberate, well-reasoned decision. Several users point to WWDC presentations where Apple explained that window corner radiuses are intentionally varied based on window content (like toolbars) to provide a 'softer feel' and 'elegant concentricity.' While some commenters defend this as a reasonable design trade-off, others dismiss Apple's explanation, arguing that the actual implementation looks 'awful' and contributes to visual noise, reflecting a perceived lack of 'taste' in modern Apple design.
Broadening UX Blight: Beyond the Borders
The discussion quickly expands beyond corner radiuses to a broader critique of recent macOS and iOS user experience changes. Commenters cite issues like the 'liquid glass' UI element, changes to Gatekeeper and app notarization, and frustrations with macOS window management (e.g., Cmd-Tab vs. Cmd-Tilde, desktop switching behavior) as further evidence of declining UX quality. Some speculate that these changes stem from Apple's push towards unifying iOS and macOS, while others defend Tahoe, pointing to new features like advanced Spotlight shortcuts and LLM integration as significant improvements that outweigh minor UI gripes.