Records what the previous commit fixed and what it left. The plan entry that said the Big Sur path costs both the menu bar and the toolbar was half wrong: the menu bar was this AppKit hiding its own view on a style mask change, and only the toolbar is an application path we do not draw. The toolbar is measured by class rather than by eye: the same three NSToolbarItemView frames at both versions, 41 NSSegmentedControl and 42 MMPopUpButton cells drawn at 1504, and not one of either at 2022. Items built, contents never drawn. Also written down that it is NOT SF Symbols, since the binary names no symbol API at all.