hexo-theme-amane/source/css/lazyload.css

article img.lazyload  {
    transition: filter .35s ease 0s;
}
article img.lazyload:not(.loaded) {
    -webkit-filter:  blur(5px);
    filter:  blur(5px);
}
article img.lazyload:not(.loaded):not(.loading) {
    padding-bottom: 52.286%;
}