// Define H1 Option
$options['h1_heading'] = array( 'name' => 'H1 Heading',
    'desc' => 'Choose your prefered font for H1 heading and titles.',
    'id' => 'h1_heading',
    'std' => array( 'size' => '32px', 'lineheight' => '32px', 'face' => 'Arial', 'color' => '#222'),
    'type' => 'typography',
    'options' => array(
            'faces' => $typography_mixed_fonts )
);

/* H1 Heading font face */
$wp_customize->add_setting( 'my_framework[h1_heading][face]', array(
    'default' => $options['h1_heading']['std']['face'],
    'type' => 'option'
) );

$wp_customize->add_control( 'my_framework_h1_heading', array(
        'label' => $options['h1_heading']['name'],
        'section' => 'my_framework_header',
        'settings' => 'my_framework[h1_heading][face]',
        'type' => 'select',
        'choices' => $options['h1_heading']['options']['faces']
) );