Note: Change the images in the section background settings and the height in the section structure settings. The overlay on hover colour is defined in the CSS in the parent row’s CSS toggle. Change the RGBA value in the background property of this section:

.bb-info-box-slide-1 .kt-blocks-info-box-text {
align-items: center;
transform: translateX(-100%);
transition: all 0.5s ease;
padding: 20px;
background: rgba(0, 0, 0, 0.8);
}