A smoothed D3.js radar chart displays a single data series with five axes—subject knowledge, sports, course design, personal qualities, and foundational courses—with values scaled from 0 to 5. It renders as an SVG with a circular grid of five levels, a glowing area path, and dots at each data point, using `d3.scaleOrdinal` for coloring and `d3.scaleLinear` for the radial scale. The chart applies rounded strokes for smooth path transitions and includes an animated glow filter via SVG `feGaussianBlur`.