A static SVG legend demonstrates categorical color mapping and fixed circle sizing using D3 v5 and React. The `colorLegend` function renders colored circles for fruit categories (`apple`, `lemon`, `lime`, `orange`) via `scaleOrdinal`, with text labels positioned by `textOffset`. The code uses D3 selections (`selectAll`, `enter`, `merge`, `exit`) to bind data, setting circle fills from the color scale and spacing items vertically. The legend appears at a translated SVG coordinate, with font size and anchor attributes applied to text elements.