QRBTF

Higher strength makes QR code easier to scan but makes image look more like a QR code; lower strength creates more natural images but may be harder to scan. Recommended: 1.0~1.3

Higher values make image details clearer. For complex scenes, set to 0.3~0.5; for simple scenes, you can lower or disable it

Larger size allows for more elements and bigger composition ratio in the image

Adjusts the proportion of QR code in the entire image. Lower value means larger QR code area. Default: 0.2

Longer links require higher correction levels for scanning, but will make QR code elements more visible in the image

Square and circle anchors are easier to recognize but more noticeable; minimal option tries to hide QR code elements