Dark Mode

Svelte Flow comes with a built-in light & dark mode. You can set the colorMode prop that allows you to switch between 'dark', 'light' and 'system'.

<script lang="ts">
  import {
    SvelteFlow,
    Background,
    Controls,
    MiniMap,
    Panel,
    type Node,
    type Edge,
    type ColorMode,
  } from '@xyflow/svelte';
 
  import '@xyflow/svelte/dist/style.css';
 
  import { initialNodes, initialEdges } from './nodes-and-edges';
 
  let nodes = $state.raw<Node[]>(initialNodes);
  let edges = $state.raw<Edge[]>(initialEdges);
 
  let colorMode: ColorMode = $state('system');
</script>
 
<div style="height:100vh;">
  <SvelteFlow bind:nodes bind:edges {colorMode} fitView>
    <Background />
    <Controls />
    <MiniMap />
 
    <Panel>
      <select bind:value={colorMode}>
        <option value="dark">dark</option>
        <option value="light">light</option>
        <option value="system">system</option>
      </select>
    </Panel>
  </SvelteFlow>
</div>

Feature Overview