Profile: Luigi Bella

Problem: I would like to use a custom icon for the datepicker, but the styles I added in Additional CSS are not applied in admin so the icon is always too large.

Solution: Use a separate stylesheet for admin styles and enqueue it with the admin_enqueue_scripts hook, or enqueue your styles directly in admin head with the admin_head hook.

Relevant Documentation:
https://codex.wordpress.org/Plugin_API/Action_Reference/admin_head