This example shows a simple line chart that plots data points across a continuous x-axis, with the line rendered in dark gray against a light background. The chart loads data using D3 utilities and manages the loaded data through React state, while Vega-Lite configuration options control the axis appearance and label styling. The visualization uses D3 v5 for data handling and SVG rendering, and incorporates a custom config object that disables axis domain lines and sets tick colors to light gray.