Enfold Image Sizes

look to functions.php of your enfold theme (parent) around line 148ff
here without the comments in it:

$avia_config['imgSize']['widget'] 	= array('width'=>36,  'height'=>36);
$avia_config['imgSize']['square'] 	= array('width'=>180, 'height'=>180);
$avia_config['imgSize']['featured'] = array('width'=>1500, 'height'=>430 );
$avia_config['imgSize']['featured_large'] = array('width'=>1500, 'height'=>630 );
$avia_config['imgSize']['extra_large'] 	= array('width'=>1500, 'height'=>1500 , 'crop' => false);
$avia_config['imgSize']['portfolio'] 	= array('width'=>495, 'height'=>400 );
$avia_config['imgSize']['portfolio_small'] = array('width'=>260, 'height'=>185 );
$avia_config['imgSize']['gallery'] = array('width'=>845, 'height'=>684 );
$avia_config['imgSize']['magazine'] = array('width'=>710, 'height'=>375 );
$avia_config['imgSize']['masonry'] = array('width'=>705, 'height'=>705 , 'crop' => false);
$avia_config['imgSize']['entry_with_sidebar'] = array('width'=>845, 'height'=>321);
$avia_config['imgSize']['entry_without_sidebar'] = array('width'=>1210, 'height'=>423 );
$avia_config['imgSize'] = apply_filters('avf_modify_thumb_size', $avia_config['imgSize']);

filter avf_modify_thumb_size – how to use it ?
e.g:

function custom_modified_thumb_sizes( $size ){
  $size['square'] = array('width'=>300, 'height'=>300 );      
  return $size;
}
add_filter('avf_modify_thumb_size', 'custom_modified_thumb_sizes', 10, 1 );

In my opinion, the above is indeed relevant. Because to prevent the automatic generation of the image sizes you have to set this.
Your question is first about how you can delete the generated alternative images. I think, if you e.g. use this “force regenerate thumbnail” and have used that code before, the files that are no longer needed will be deleted.
There shouldn’t be any performance reasons when using a CDN, only memory space savings are achieved.

@jasmer

you just need the plugin “Simple Image Sizes”, if you do not want or use some image sizes.

Just install “Simple Image Sizes”, then go to “settings” -> “media” and set the height and width to both “0” where you don’t want this image size – that’s it. No need of any code snippet or something like that.

View post on imgur.com

But: this procedure cannot delete existing and not used image sizes; this is only for new image uploads!

How can you recommend Simple Images Sizes when it is not compatible with the ShortPixel Image Optimizer which is one of two main choices in Enfold??? I need an alternative to Simple Image Sizes where I can turn off cropping. I found a way to change the sizes via a function but not “false or true” for cropping.

Attention to this post – the plugin simple image sizes is not updated since 2019