QR-Code Generator

Generates QR codes as LVGL canvas images. Enable with LV_USE_QRCODE in lv_conf.h.

QR code colors and quiet zone

Encode a URL with custom dark/light colors and a padded quiet zone.

The QR code is fixed at 150 px and recolored: a dark blue dark_color on a light blue light_color instead of the default black-on-white. quiet_zone adds the standard light margin so scanners lock on, and a matching border frames it against the screen.