This example demonstrates SVG fundamentals through a minimalist composition of concentric circles over a vertically layered linear gradient. The code defines a multicolor gradient with abrupt color stops and applies a Gaussian blur filter, though the blur is not currently used on any visible elements. A single `<g>` group centers two overlapping circles in pale yellow against the dark purple-to-orange gradient background. The visualization uses only native SVG tags such as `linearGradient`, `feGaussianBlur`, `rect`, and `circle`, with no external libraries, highlighting basic shape rendering and fill techniques.