Native HTML Form Controls
Input element with type="text" attribute.
Input element with type="email" attribute.
Check Group
Radio Group
Passwords

The Password Confirm field below is automatically generated based on the presence of a Password field.

Custom Form Controls
This custom form control is a div element, not an input element.
This custom form control checks if a the div#exists contains an img tag.
Other Options

These options can be applied to the fields above.

Optional fields will allow a blank input.
Optional fields will still be validated when there is input present.
(Numbers only.)
This field uses a user supplied regular expression to test against and can output a custom error message. The value of the field will be run against all default validation checks, then run against the pattern.
Required fields can be dynamically disabled/enabled.