Chart.js Navigator Part 4 - Add a Mini Chart Selector (Brush Tool)

Learn to build an interactive navigator mini chart in Chart.js by creating a brush tool selector similar to those found in advanced charting libraries like Highcharts. Set up a second chart to function as a brush tool navigator, implement a zoomable time series dataset, and establish visual connections between two charts for future interaction capabilities. Explore the implementation of mini chart functionality with zoom and pan support, light and dark mode compatibility, and mobile responsiveness. This tutorial forms part of a comprehensive 5-part series focused on building a fully functional, zoomable dashboard using only Chart.js, providing essential skills for creating sophisticated data visualization interfaces with interactive navigation controls.