Add color choices to field dynamically populated by the Gravity Forms + Custom Post Types plugin, where colors are set as the text of each taxonomy term

add_colors_to_taxonomy_choices.php

<?php
function add_colors_to_taxonomy_choices( $form ) {
	global $gf_cpt_addon;
	if ( empty($gf_cpt_addon) ) {
		return $form;
	}
	
	foreach( $form['fields'] as &$field ) {
		$taxonomy = $gf_cpt_addon->get_field_taxonomy( $field );
		$colorPickerEnabled = ( isset($field['colorPicker_enableColors']) && !empty($field['colorPicker_enableColors']) );
		if ( $taxonomy && $colorPickerEnabled ) {
			$new_field_choices = array();
			foreach( $field['choices'] as $choice ) {
				$term_id = $choice['value'];
				$term_name = $choice['text'];
				if ( !empty($term_id) ) {
					$color_hex = $term_name;// UPDATE THIS TO CORRECT HEX VALUE WITH # (eg #ffffff)
					$choice['colorPicker_color'] = $color_hex;
				}
				$new_field_choices[] = $choice;
			}
			$field['choices'] = $new_field_choices;
		}
	}
	
	return $form;
				
}

add_filter( 'gform_pre_render', 'add_colors_to_taxonomy_choices', 100, 1 );
add_filter( 'gform_pre_submission_filter', 'add_colors_to_taxonomy_choices', 100, 1 );
add_filter( 'gform_admin_pre_render', 'add_colors_to_taxonomy_choices', 100, 1 );