Uneven padding arround qr code

[rashhworld]

The padding surrounding the QR code appears uneven, as indicated by the marked border for examination. It is evident that the top and left padding is inconsistent with the right and bottom padding.

my js looks like this
var qr = new QRious({ element: document.getElementById('qrcover'), background: 'white', padding: 15, size: 300, value: qrText });

version: 4.0.2