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iphone - Generate colorful QR code

I want to generate the colorful QR code. I had used https://github.com/kuapay/iOS-QR-Code-Generator code to generate the QR code. now the qr code generated is always n black color.I want to make it in Red or any other color. The coding of coloring And the drawing of QR code .png image is done QR_Draw_png.mm file. What should i edit in QR_Draw_png.mm this file. How to do the generate the colorful qr code.

How is it possible.

Please help me.

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