Add colour swatches to radio, checkboxes and single-line text fields. We’ve built our Gravity Forms Color Picker add-on off the back of our popular Image Choices add-on for Gravity Forms. Our Color Picker add-on works straight out of the box and works in the same manner that Image Choices does. Simply tick on the ‘use colors’ option when you add any checkbox or radio-based field. Gravity Forms Color Picker supports radio fields, checkbox fields and single text line fields.