I've created a full-screen flow-field particle animation using p5.js. The implementation includes: - Thousands of particles (2000) advected by Perlin noise vectors - Fading trails achieved through semi-transparent background and particle lifetime - Color shifting over time with a smooth color palette based on Perlin noise - Full-screen canvas that resizes with the window - Particle bouncing off edges for continuous motion The animation runs completely self-contained in index.html with no external resources or network requests, using only the provided p5.min.js library. The particles are generated with random initial positions and velocities, and their movement is influenced by a flow field created from Perlin noise. Each particle has a limited lifespan, fading out and respawning to create a continuous stream of motion. The colors shift smoothly across the spectrum as particles age, creating a visually dynamic effect. The code is written as a single HTML file with embedded CSS and JavaScript, meeting all requirements.