vent-template/src/design/themify/dark.less

html[data-theme='dark2'] {
    --themify-text-primary: #ddd;
    --vent-base-light-bg: #60f4ff;
    --vent-base-light-bg-opcity: #60f4ff55;
    --vent-configurable-bg: #09316a;
    --vent-configurable-module-bg: #3df6ff22;
    --vent-configurable-module-border-bd: linear-gradient(#1dabeb 0%, #1dabeb 60%, #000723);
}