Add svg icon before label in Select Advanced Field

Hi,

You can use the field setting before or after to add some custom HTML code outputted before the field's appearance (not label only). Please read more on this documentation
https://docs.metabox.io/creating-fields-with-code/#field-settings

Hi,

Currently, it is not possible to add an icon before the option label like that. I will inform the development team to consider supporting this feature in future updates.