Default button

fr-btn--secondary-white

fr-btn--secondary-blue-100

fr-btn--secondary-blue-300

fr-btn--secondary-blue-400

fr-btn--secondary-blue-500

fr-btn--secondary-grey-50

fr-btn--secondary-grey-100

fr-btn--secondary-grey-200

fr-btn--secondary-grey-300

fr-btn--secondary-grey-380

fr-btn--secondary-grey-400

fr-btn--secondary-grey-500

fr-btn--secondary-green-400