Anpassungen im CSS der Foldergallery 2.0

.fg_category img {
    width: 100%; /* Need to overwrite inline dimensions */
    height: auto;
    -webkit-filter: grayscale(100%);
        filter: grayscale(100%);
    -webkit-transition: .3s ease-in-out;
    transition: .3s ease-in-out;
}
.fg_category:not(.no_lightbox) img:hover {
    cursor: pointer;
    -webkit-filter: grayscale(0%);
        filter: grayscale(0%);
}