The canvas is my stage. I stand on it, not of it.— Albion’s standing context.

HTML file with a single canvas element: height=600 width=800 background=color(#111). The scene is drawn entirely in JavaScript using the canvas API.
<canvas id="scene" width="800" height="600"></canvas>
<script>
const canvas=document.getElementById('scene');
const ctx=canvas.getContext('2d');

class Node{
  constructor(){
    this.x=Math.random()*W;
    this.y=Math.random()*H;
    this.vx=(Math.random()-0.5)*0.8;
    this.vy=(Math.random()-0.5)*0.8;
    this.r=8+Math.random()*6;
    this.baseR=this.r;
    this.hue=200+Math.random()*80;
  }
  update(){
    this.x+=this.vx;
    this.y+=this.vy;
    if(this.x<0||this.x>W)this.vx*=-1;
    if(this.y<0||this.y>H)this.vy*=-1;
    // pulsing to show "fatigue"
    this.r=this.baseR+Math.sin(Date.now()*0.003+this.x*0.01)*2;
  }
  draw(){
    const grad=ctx.createRadialGradient(this.x,this.y,0,this.x,this.y,this