This scatter plot matrix displays a grid of pairwise comparisons between cardiovascular measurements, with each cell visualizing the relationship between two variables as a tight cluster of small points. The visualization is built using the vega-lite-api, which registers both Vega and Vega-Lite to render the chart, and pulls data from a CSV hosted on GitHub. The design employs a minimal axis configuration with hidden gridlines and tiny labels, and users can select individual points by holding the control key while clicking, highlighting them in red to identify potential outliers across the dataset.