The how to is pretty simple. Just add a ?logo=https://somelogoURL to the login page URL.

The somelogoURL can be an external site or an image that you uploaded to Cricket Statz. It just needs to be https (secure).

For example, you could use:

https://www2.cricketstatz.com/ss/?logo=https://upload.wikimedia.org/wikipedia/en/c/c6/Valley_District_Cricket_Club.png