labelwriter / core/src / createPreviewOffline

Function: createPreviewOffline()

createPreviewOffline(image, media): PreviewResult

Offline preview without a live printer connection.

LabelWriter is single-colour, so the result is always a single black plane. Callers that need the preview to match the exact 300-DPI head geometry are responsible for scaling; this function just renders the RGBA with the same Atkinson dither used by print().