Video showing the Google image search “Tools” menu with submenus for Size, Color, etc. Any diagonal movement from the main menu to a submenu risks selecting an item from the next submenu as there is no tolerance for diagonal movement of the mouse. In this case, the desired submenu item from “Size” → “Large” is accidentally replaced by “Color” → “Any color” because as the mouse is move diagonally from the main menu to the submenu, it crosses into the next menu item’s territory briefly.

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   Michael Porter (michaelporter@ottawa.place)'s status on Tuesday, 09-Dec-2025 14:26:57 JST Michael Porter

   in reply to

   @scottjenson I like this - I came across your post after repeatedly messing up an image search because navigating to a submenu is intolerant to diagonal mouse movement (one of the gems of the Mac UI that I’ve always appreciated). I kept selecting a colour preference instead of a size preference. Little touches in a UI go a long way.

   Keeping the duration at 50 ms, I definitely prefer “Smooth" over “Fade” and “Classic”.
   I can see how the graininess of Classic might appeal to some people – There's no ambiguity at all as to where the mouse is hovering – but personally I don't think anything is sacrificed with the Fade, and it definitely feels calmer 😊