header image size is too small

in the functions, try to change

// Support flexible height and width.
                'flex-height'            => false,
                'flex-width'             => false,

into

// Support flexible height and width.
                'flex-height'            => true,
                'flex-width'             => true,

Also did you re-upload the logo in Header section?

Still doesn’t seem to work, WordPress constantly forces me to crop thie image.

Sorry for the late response.

Ok Ive gone and tested it using your logo, try this, it should work now hopefully.

empty your functions.php file and replace it all with:-

<?php

function newgamerchild_custom_header_setup() {
	$args = array(

		// Set height and width, with a maximum value for the width.
		'height'                 => 82,
		'width'                  => 610,
		'max-width'              => 610,
                'header-text'            => false,

		// Support flexible height and width.
		'flex-height'            => true,
		'flex-width'             => true,

		// Random image rotation off by default.
		'random-default'         => false,

	        'uploads'                => true,
	        'wp-head-callback'       => '',
	        'admin-head-callback'    => '',
	        'admin-preview-callback' => '',
	);

	add_theme_support( 'custom-header', $args );
}
add_action( 'after_setup_theme', 'newgamerchild_custom_header_setup' );

?>

seems Andrew was on the right path, but code was missing the `add_theme_support( ‘custom-header’, $args );’

Hopefully this should work now and allow you to resize to your desired size.

Also for future reference, to make sure all is working – in the Header section it should always show the dimensions of the new values. Just look where it says “Select Image” and it should say “Images of exactly 610 × 82 pixels will be used as-is.”

Thank you very much, now it works perfectly ??

Good to hear that ?? Marking as resolved.