Chart.js Advanced Techniques (v4.5.1)

Guide to advanced Chart.js customization including gradients, custom chart types, and programmatic control.

Gradients

Create visual depth with linear and radial gradients.

Linear Gradients

const ctx = document.getElementById('myChart').getContext('2d');

// Create gradient
const gradient = ctx.createLinearGradient(0, 0, 0, 400);
gradient.addColorStop(0, 'rgba(75, 192, 192, 1)');
gradient.addColorStop(0.5, 'rgba(75, 192, 192, 0.5)');
gradient.addColorStop(1, 'rgba(75, 192, 192, 0.1)');