This example displays a week of temperature data for San Francisco as a smooth filled area chart. The SVG visualization uses time-series data from a CSV file loaded via `d3.csv`, with temperature mapped to the vertical axis and timestamp to the horizontal axis using `scaleTime` and `scaleLinear`. The chart is rendered with D3 v5, including axis components (`axisLeft`, `axisBottom`) and a filled path generated by the `area` generator with a `curveBasis` interpolation. Grid lines from tick marks and custom axis labels enhance readability.