byd_theme_support

// Set content width value based on the theme's design
if ( ! isset( $content_width ) )
	$content_width = 85%;

// Register Theme Features
function byd_custom_theme_features()  {

	// Add theme support for Featured Images
	add_theme_support( 'post-thumbnails' );

	 // Set custom thumbnail dimensions
	set_post_thumbnail_size( 200, 200, true );

	// Add theme support for Custom Background
	$background_args = array(
		'default-color'          => '',
		'default-image'          => 'defaultbackground.png',
		'default-repeat'         => 'none',
		'default-position-x'     => 'top',
		'wp-head-callback'       => '',
		'admin-head-callback'    => '',
		'admin-preview-callback' => '',
	);
	add_theme_support( 'custom-background', $background_args );

	// Add theme support for Custom Header
	$header_args = array(
		'default-image'          => 'fantasiesbydesign.com/logoa.png',
		'width'                  => 0,
		'height'                 => 200,
		'flex-width'             => true,
		'flex-height'            => false,
		'uploads'                => false,
		'random-default'         => false,
		'header-text'            => false,
		'default-text-color'     => '',
		'wp-head-callback'       => '',
		'admin-head-callback'    => '',
		'admin-preview-callback' => '',
		'video'                  => false,
		'video-active-callback'  => '',
	);
	add_theme_support( 'custom-header', $header_args );

	// Add theme support for document Title tag
	add_theme_support( 'title-tag' );
}
add_action( 'after_setup_theme', 'byd_custom_theme_features' );