Fields that have been deprecated are now visualized in Funnel with a strike-through instead of a greyed out logo.
Deprecated fields are normally replaced with other metrics/dimensions and are usually a result of a particular connection/API being updated. In most cases, these types of fields should be avoided.
We hope that this new styling makes it easier to differentiate between deprecated and active fields. If you have any questions please contact firstname.lastname@example.org and we'll be happy to help!