Edit Gutenberg Editor Font Sizes

/********************************
UPDATE EDITOR FONT SIZES
********************************/
add_theme_support( 'editor-font-sizes', array(
    array(
        'name' => esc_attr__( 'Small', 'themeLangDomain' ),
        'size' => 12,
        'slug' => 'small'
    ),
    array(
        'name' => esc_attr__( 'Regular', 'themeLangDomain' ),
        'size' => 16,
        'slug' => 'regular'
    ),
    array(
        'name' => esc_attr__( 'Large', 'themeLangDomain' ),
        'size' => 36,
        'slug' => 'large'
    ),
    array(
        'name' => esc_attr__( 'Huge', 'themeLangDomain' ),
        'size' => 50,
        'slug' => 'huge'
    ),
    array(
        'name' => esc_attr__( 'Uppercase', 'themeLangDomain' ),
        'size' => 34,
        'slug' => 'uppercase'
    )
) );