Enable use of CYMK colour values in the QR Designer
To enable tight colour reproduction and ensure the sharpest possible result when printing I'd ask to have the CYMK value be added in the QR Designer when defining colours. I have used the # codes to produce the simplest CYMK colors but there is always slippage in values when exporting so it's very difficult to tightly control the actual CYMK values when importing the QR codes into a publication application such as Adobe InDesign. For example I have derived the # code #2e3192 which is C=100 M=100 Y=0 K=0 in Photoshop but when the QR code is exported and brought back into Photoshop the values are C=98 M=97 Y=3 K=1. It's impossible to stipulate C=0, M=0 Y=0 and K=100 which would ensure the sharpest possible print result enabling the use of very small QR codes.