themes/ignite-shop/webapp/ignite/scss/bootstrap_custom/_modal.scss
@each $variant, $color in (primary: $brand-primary, secondary: $gray-lighter, success: $brand-success, info: $brand-info, warning: $brand-warning, danger: $brand-danger) {
.modal-#{$variant} {
.modal-content {
border-color: $color;
}
.modal-header {
color: #fff;
background-color: $color;
}
}
}