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Theme support

// Set content width value based on the theme's design
if ( ! isset( $content_width ) )
	$content_width = 800;

// Register Theme Features
function my_theme_features()  {

	// Add theme support for Post Formats
	add_theme_support( 'post-formats', array( 'quote', 'gallery', 'image', 'video', 'audio', 'link', 'aside' ) );

	// Add theme support for Featured Images
	add_theme_support( 'post-thumbnails', array( 'post', ' page', ' movie', ' portfolio' ) );

	 // Set custom thumbnail dimensions
	set_post_thumbnail_size( 300, 220, true );

	// Add theme support for HTML5 Semantic Markup
	add_theme_support( 'html5', array( 'search-form', 'comment-form', 'comment-list', 'gallery', 'caption' ) );

	// Add theme support for document Title tag
	add_theme_support( 'title-tag' );

	// Add theme support for Translation
	load_theme_textdomain( 'my_super_theme', get_template_directory() . '/lang' );
}

// Hook into the 'after_setup_theme' action
add_action( 'after_setup_theme', 'my_theme_features' );