can we fade in the images instead of just popup?

[nabtron]

can we fade in the images instead of just popup?

[virgo79]

I would love having this feature enabled in 2.x.
Just a simple fadeIn when images are loaded.

[frankeymen]

I use the following to fade in the images:

js

jQuery('img.lazy').on('load', function(){
  this.style.opacity = 1;
});
jQuery('img.lazy').lazyload();

css

img.lazy {    
     opacity: 0;
    transition: opacity .2s ease-in-out;
}