custom theme features

// Register Theme Features
function custom_theme_features()  {

	// Add theme support for Post Formats
	add_theme_support( 'post-formats', array( 'gallery' ) );

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

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

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

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

	// Add theme support for custom CSS in the TinyMCE visual editor
	add_editor_style();
}
add_action( 'after_setup_theme', 'custom_theme_features' );