Deprecated button styles are scheduled to be removed on July 5. Suggested replacements for these styles are available in the WDN Framework Documentation.
Deprecated styles were included with the 2019 launch of UNL Web Framework 5 to aid developers in transitioning styles from version 4 to 5 while minimizing disruption to the developer’s workflow.
Web Audit is now providing notices (not errors) to sites that include deprecated styles.
In UNLcms, deprecated styles can optionally be turned off by going to Appearance, selecting the enabled 5.3 (default) theme Settings, then unchecking the “Include deprecated CSS file” checkbox under Advanced Settings near the bottom of the page. Lastly, press the “Save configuration” button.
More details at: https://wdn.unl.edu/