[Theme Horse Support Team]

hi
you go to functions.php (inside wp-content->themes->attitude)
there is functions.php
Can you see this ?

	add_image_size( 'featured', 670, 300, true );
	add_image_size( 'featured-medium', 230, 230, true );
	add_image_size( 'slider-narrow', 1038, 460, true ); 		// used on Featured Slider on Homepage Header for narrow layout
	add_image_size( 'slider-wide', 1400, 460, true ); 			// used on Featured Slider on Homepage Header for wide layout
	add_image_size( 'gallery', 474, 342, true ); 				// used to show gallery all images
	add_image_size( 'icon', 80, 80, true );						//used for icon on business layout

you just change

add_image_size( 'slider-wide', 1920, 460, true );

hope this may help you
Thank you