Change featured image height in the child theme functions.php

Hi, I would like to change the height of the code below using my child’s theme functions.php.

This is line 101 in the parent functions.php
$avia_config['imgSize']['entry_with_sidebar'] = array('width'=>710, 'height'=>270); // big images for blog and page entries

I tried the below but that did not work.

if ( function_exists( 'add_theme_support' ) ) {
    add_theme_support( 'entry_with_sidebar'' );
    set_post_thumbnail_size( 710, 470 ); // New big images for blog and page
}

Thanks for your help.
Victor

• This topic was modified 10 years, 3 months ago by techmyocn.