The reward widget, AKA buy me a coffee widget, gives the readers a way to support a creator through the use of donations or tips.
However, it limited to the QR code image, please take a look at the funding widget.
reward is a key value pair that mapping from platform to their QR Code image, therefore, any platform that supports QR code is supported.
||String||-||Alipay QR Code Image.|
||String||-||Wechat QR Code Image.|
||Turn on/off reward widget.|