[keycloak-user] Environment-specific configuration available in theme

We're considering building an account management theme that is capable of uploading a profile photo. We'd save the photo to an S3 bucket, and would wish to do so based on environment; our stage Keycloak would point to a stage S3 bucket, prod to the prod bucket, etc.. Is there a way to configure Keycloak on a per-environment basis such that our theme could know its environment in order to point to the correct S3 bucket? Thanks! Chris