Theme Horse

Hi ksuna24,
The default featured image size is 670 * 300, So if you update bigger size than this then the featured image will automatically crop the image size into 670 * 300, IF you want changes on the size of image then the code is inside theme folder -> functions.php

	// Add Interface Pro custom image sizes
	add_image_size( 'featured', 670, 300, true );
	add_image_size( 'featured-medium', 230, 160, true );
	add_image_size( 'slider-narrow', 1038, 500, true ); 		// used on Featured Slider on Homepage Header for narrow layout
	add_image_size( 'slider-wide', 1440, 500, 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', 100, 100, true );						//used for icon on business layout

We recommended you to create a child theme before making any changes on it.

Thank you!