cloud/client/web_content/assets/scss/theme.scss

.dialog-close:hover {
    background-color: #fb6155;
}

md-checkbox.md-checked .md-icon {
    background-color: rgb(63, 81, 181);
}

.header {
    background: #0795f4;
    border-bottom: 1px solid #2485ce;
}

.dialog-head {
    background: #3083eb;
    color: #fff;
}