Settings

- Banner Required,I recommend using a logo
- My Projects: Grid only, all hidden
- Collections: optional
- Border Radius: 15
- Colors: #f9fafd, #1f102a, #1f102a

HTML

Before the text, I placed a banner (406x72).

CSS

/*=======================Header=======================*/
 .text_header {
     text-align: center;
     font-size: 24px;
     display: none !important;
}
 .custom-banner {
     margin: auto;
     margin-bottom: 10px;
     margin-top: 0px !important;
     padding: 0px !important;
}
 .image_header {
     margin: 5px;
     padding-top: 7.5%;
     padding-bottom: 1%;
     background-image: url(https://i.imgur.com/X8nNgGb.jpg);
     background-position: 50% 55%;
     background-size: cover;
     border-bottom-left-radius: var(--itchio_border_radius);
     border-bottom-right-radius: var(--itchio_border_radius);
     animation: BgAnim;
     animation-duration: 45s;
     animation-direction: alternate;
     animation-iteration-count: infinite;
     animation-timing-function: ease-in-out;
}
 .profile_banner {
     width: 125px !important;
     border-radius: var(--itchio_border_radius);
     border-style: solid;
     border-width: 2px;
     box-shadow: 3px 3px;
}
 .user_links {
     display: none;
}
/*=======================Profile=======================*/
 .profile_content {
     text-align: center;
}
 .profile_column {
     padding: 10px;
     padding-bottom: 0px !important;
     margin-bottom: 0px !important;
     margin-bottom: 30px;
     border-radius: var(--itchio_border_radius);
}
 .profile_column h2{
     margin-top: 25px;
}
 .user_page_wrap a {
     font-weight: bold;
     text-decoration: none;
}
/*=======================Collections=======================*/
 .collection_description {
     text-align: center;
     font-size: 1.1428571429em;
     opacity: 0.8;
     margin: 0 0 0.75em 0;
     white-space: nowrap;
     overflow: hidden;
     text-overflow: ellipsis;
}
 .inner_column h2 {
     text-align: center;
}
/*=======================Game Cell=======================*/
 .game_cell {
     padding: 10px;
     border-radius: var(--itchio_border_radius);
     border-style: solid;
     border-width: 2px;
     box-shadow: 3px 3px;
}
 .web_flag {
     background-color: black !important;
     color: white !important;
}
 .game_thumb:not(hover) {
     background-size: cover;
     border-style: solid;
     border-width: 2px;
     filter: grayscale(50%);
     transition: filter;
     transition-duration: 0.4s;
}
 .user_page_wrap .link_group:hover {
     transform: scale(0.9);
     transition: transform;
     transition-duration: 0.4s;
}
.game_cell:not(:hover){
     transform: scale(1);
     transition: transform;
     transition-duration: 0.4s;
}
 .game_cell:hover {
     transform: scale(0.9);
     transition: transform;
     transition-duration: 0.4s;
     .game_thumb{
         filter: grayscale(0%);
         transition: filter;
         transition-duration: 0.4s;
    }
}
 .user_page_wrap .icon {
     color: black !important;
}
 
/*=======================Animation=======================*/
 @keyframes BgAnim {
     0% {
        background-position: 50% 25%;
    }
     100% {
        background-position: 50% 76%;
    }
}

Background created with: image creator from  designer