qr-codes.biz User Guide
QR Layer Overlay
Tint the QR data layer with a separate overlay color and transparency level.
What the overlay does
QR Layer Overlay places a color layer over the QR data area while leaving the quiet zone and center logo unchanged.
Transparency
Choose 0% through 100% transparency. 0% is fully opaque and 100% is fully transparent.
Important: A strong overlay can reduce contrast. Watch Scan Reliability and scan-test the final design.