The empty box became a beautiful, old-style microgram symbol (µ). The ohm sign (Ω) snapped into place. The diameter symbol (⌀) looked crisp.

Double-click. Font Book opened a warning: “This font is old and may not work correctly.”

Alex wasn’t a quitter. They opened a browser and typed the desperate string: .

They applied it.

Back in InDesign. They selected the problematic text box. Highlighted a "µ" symbol. Opened the Character panel. Scrolled past Helvetica, Arial, Times.

Alex clicked .