weird grayscale effect
Image by adamrice
Gwen’s shiny new Macbook has a bizarre display bug in which the contents of a window will partially and temporarily turn gray. Resizing or scrolling the window, or clicking on an element in the window, will usually undo it, at least temporarily.
This shows how the left column is displaying normally, and the middle column is partly gray, but the most recently clicked folders are appearing in blue, as they should. Weird.