Native Sankey Chart Support in ApexCharts

[praveen5959]

Summary

It would be great to have built-in support for Sankey diagrams in ApexCharts to visualize flow-based data, such as user journeys, traffic, energy, or resource distribution.

API Changes

chart: {
  type: 'sankey'
},
series: [{
  data: [
    { from: 'Website', to: 'Signup', flow: 120 },
    { from: 'Signup', to: 'Trial', flow: 80 },
    { from: 'Trial', to: 'Paid', flow: 50 },
    { from: 'Trial', to: 'Churned', flow: 30 }
  ]
}]

Intended Use Case

• Helps visualize directional flow of data with weighted connections.
• Common in analytics, finance, network monitoring, and sustainability dashboards.
• Currently, users rely on external libraries (e.g., Chart.js plugins or D3), which breaks the native ApexCharts integration and theming.