Colors for QR-Codes

[timoihrke]

The color palette for QR codes should be expanded. If possible, a feature for entering a hex code should also be added.

[timoihrke]

kits-Blau: 0,163,211
coral1: 255,114,86
DeepPink1: 255,20,147
SeaGreen3: 67,205,128
turquoise4: 0,134,139
RosyBrown2: 238,180,180