Options Widget Placeholder

Provides an additional setting for the option field widgets, so that that the default "- none -" option can be customized, on a per-field and per-form-mode basis. This works for all entity types.

Use cases: fine tune the way select widgets are phrased in product attributes, event registration information, personal details, etc.

Depending on the field name (and the available options) you might rename the '-none-' option to "No Preference", "Choose a colour", etc.

So far this works with FieldAPI options widgets.

Site Builders

The module plays no part in whether a "_none" option is presented - it simply let's you customize the phrase where it is present. This depends on whether a field is required and/or multi-valued. Experiment until the form widget is right for you - you don't need this module's settings for every select field.

Notes:
This module does NOT force dashes to be included at the start and end, but you can include them yourself.
The default presentation in Radio Buttons is "N/A"
The default presentation in Select element is "- None -".

Developers

This works by changing the human-readable string which accompanies the '_none' option from FormAPI.

Development Status

Works well with Drupal-8.0.0-rc4.
I'll review this when Drupal 8 reaches a stable 8.0.0 release.