[Notebook 4] Image optimization (SVG/PNG)

[dannycab]

Overview

Convert or source open-source SVG versions of all images in notebook 4, then export as PNG for use in the notebook.

Checklist

• Identify all images currently used in notebook
• For each image:
  • Find or create open-source SVG version
  • Generate PNG export from SVG
  • Update image reference in notebook to use PNG
  • Verify image renders correctly
• Document source attribution for SVG files
• Ensure image quality is maintained in PNG export
• Check file sizes are reasonable

Notes

• Maintain consistent image dimensions
• Keep original images for reference
• Consider using Inkscape for SVG creation/modification if needed