7 string references to 'Fields'

ContextualLinks::buildOptionsForm in drupal/core/modules/contextual/lib/Drupal/contextual/Plugin/views/field/ContextualLinks.php
Default options form that provides the label widget that all fields should have.
DisplayPluginBase::optionsSummary in drupal/core/modules/views/lib/Drupal/views/Plugin/views/display/DisplayPluginBase.php
Provide the default summary for options in the views UI.
Links::buildOptionsForm in drupal/core/modules/views/lib/Drupal/views/Plugin/views/field/Links.php
Overrides \Drupal\views\Plugin\views\field\FieldPluginBase::defineOptions().
tour.tour.views-ui.yml in drupal/core/modules/views_ui/config/tour.tour.views-ui.yml
drupal/core/modules/views_ui/config/tour.tour.views-ui.yml
ViewExecutable::viewsHandlerTypes in drupal/core/modules/views/lib/Drupal/views/ViewExecutable.php
Provide a list of views handler types used in a view, with some information about them.
views.data_types.schema.yml in drupal/core/modules/views/config/schema/views.data_types.schema.yml
drupal/core/modules/views/config/schema/views.data_types.schema.yml
views.field.schema.yml in drupal/core/modules/views/config/schema/views.field.schema.yml
drupal/core/modules/views/config/schema/views.field.schema.yml