Adding options for custom btn icons

[nathan-schmidt-viget]

Add a demo file to easily add in custom icons for the button. Copy what we have in IAFFF inc/icons.php

<?php
/**
 * Custom Button Icons.
 *
 * @package IAFFFoundation
 */

/**
 * Add custom icons to the button icons array.
 * */

add_filter(
	'acfbt_button_icons',
	function ( array $icons ): array {
		$icon_path = get_stylesheet_directory() . '/src/images/icons/';

		/* Short Arrows */
		$icons['short-arrow-right'] = [
			'label'       => __( 'Short Arrow Right', 'iafffoundation' ),
			'icon'        => file_get_contents( $icon_path . 'short-arrow-right.svg' ),
			'defaultLeft' => false,
		];
		$icons['short-arrow-left']  = [
			'label'       => __( 'Short Arrow Left', 'iafffoundation' ),
			'icon'        => file_get_contents( $icon_path . 'short-arrow-left.svg' ),
			'defaultLeft' => true,
		];

		/* Box Arrows */
		$icons['box-arrow-right'] = [
			'label'       => __( 'Box Arrow Right', 'iafffoundation' ),
			'icon'        => file_get_contents( $icon_path . 'box-arrow-right.svg' ),
			'defaultLeft' => false,
		];
		$icons['box-arrow-left']  = [
			'label'       => __( 'Box Arrow Left', 'iafffoundation' ),
			'icon'        => file_get_contents( $icon_path . 'box-arrow-left.svg' ),
			'defaultLeft' => true,
		];

		return $icons;
	}
);