Options to configure include displaying the first, second or both chosen indexes as well as a ratio of the two.
When comparing indexes, they're a bit "off", as data is not backfilled in consideration for initial index weighting. Feature not a bug?
Bitcoin Core jar: 1Nam3db9hNMDNNxKMj4uypj9Hxh4oUfHEK
Sorry if I haven't replied to your message yet, I'm a bit backlogged :)