Theme override to display an advanced form element.
attributes: HTML attributes for the containing element.
errors: (optional) Any errors for this form element, may not be set.
prefix: (optional) The form element prefix, may not be set.
suffix: (optional) The form element suffix, may not be set.
required: The required marker, or empty if the associated form element is
type: The type of the element.
name: The name of the element.
label: A rendered label element.
label_display: Label display setting. It can have these values:
before: The label is output before the element. This is the default.
The label includes the #title and the required marker, if #required.
after: The label is output after the element. For example, this is used
for radio and checkbox #type elements. If the #title is empty but the
field is #required, the label will contain only the required marker.
invisible: Labels are critical for screen readers to enable them to
properly navigate through forms but can be visually distracting. This
property hides the label for everyone except screen readers.
Functions and templates for the user interface to be implemented by UIkit 8.
Drupal's default template renderer is a simple PHP parsing engine that
includes the template and stores the output. The default template engine in
Drupal 8 is Twig. This…