- Parse PPD translation strings and decode hex escapes (e.g. CD<2F>DVD -> CD/DVD) - Populate InspectorView media type and tray dropdowns with human-readable titles while preserving computer-readable choice codes - Fix empty-array nil coalescing bug in InspectorView preventing empty tray and media type popups - Support OEM vendor PPD keywords (Canon CNIJMediaType/CNIJMediaSupply, Epson EPIJ_FdSo) - Add dual-identity lookup in PrintEngine and InspectorView for robust choice code vs title resolution - Add comprehensive PPDOptionsTests and CLI test runner Closes #1, Closes #2