Building on Day 1's external file approach, Day 2 demonstrates the power of embedding SVG content directly within HTML. This approach provides a crucial advantage: the ability to manipulate SVG elements as part of the Document Object Model (DOM).
When SVG is embedded inline (rather than loaded as an external file), each SVG element becomes a manipulable DOM node. This means we can use JavaScript to dynamically change colors, positions, sizes, and other properties of individual "pixels" in real-time, without needing to regenerate the entire image.
The image below shows the same 20×20 pixel grid as Day 1, but now embedded directly in the HTML. This inline approach enables interactive features like the color manipulation controls you'll see below the image.