This example demonstrates a minimal React application that loads a CSV dataset of CSS named colors using D3’s `csv` utility and displays a summary of the data as plain text. The app uses React state to track the loading process, initially showing “Loading...” and then rendering a message with the formatted file size in kilobytes, the row count, and the column count. The message is composed by the `message` function, which also relies on D3’s `csvFormat` to estimate the data’s size. The visualization is purely textual, with a large font, and does not plot the colors themselves.