printf( __( 'Images of exactly <strong>%1$d × %2$d pixels</strong> will be used as-is.' ) . '<br />', get_theme_support( 'custom-header', 'width' ), get_theme_support( 'custom-header', 'height' ) );
} elseif ( current_theme_supports( 'custom-header', 'flex-height' ) ) {
if ( ! current_theme_supports( 'custom-header', 'flex-width' ) )
printf( __( 'Images of exactly <strong>%1$d × %2$d pixels</strong> will be used as-is.' ) . '<br />', get_theme_support( 'custom-header', 'width' ), get_theme_support( 'custom-header', 'height' ) );
} elseif ( current_theme_supports( 'custom-header', 'flex-height' ) ) {
if ( ! current_theme_supports( 'custom-header', 'flex-width' ) )