/* barcode editor — one generated image, no clickable sub-objects. Centre it and keep a white
   backdrop so a light barcode is still readable against the dark canvas. */
.dia-barcode .flow-canvas svg,
.dia-barcode .flow-eg-out svg { background: #ffffff; }
.dia-barcode .flow-stage { display: flex; align-items: center; justify-content: center; }