Split the gallery into sections with a divider, start the colored set

Generators now live in gen/<section>/<subject>/<action>.js; the section
folder picks where a tile shows in the gallery and isn't part of the URL.
The first 50 are in gen/bw, a dashed divider follows, then gen/color.

First colored ones: fox/sleep, pig/oink, duck/swim, whale/spout,
turtle/walk, owl/blink, crab/dance, butterfly/flutter, dino/stomp,
jellyfish/pulse.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

gen/bw/popcorn/pop.js

@@ -0,0 +1,25 @@
+// striped popcorn bucket with kernels popping up out of the pile and dropping back in
+const{sin,cos,PI}=Math,T=2*PI
+export const frames=20,delay=60
+const kernel=(c,x,y,a,s=1)=>{
+  const B=[[0,0,11],[10,-6,9],[-9,-7,9],[2,-14,8]]
+  c.save();c.translate(x,y);c.rotate(a);c.scale(s,s)
+  c.lineWidth=12/s;for(const[bx,by,r]of B)c.beginPath(),c.arc(bx,by,r,0,T),c.stroke()
+  for(const[bx,by,r]of B)c.beginPath(),c.arc(bx,by,r,0,T),c.fill()
+  c.restore()
+}
+export default(c,t)=>{
+  const pile=[[84,120],[106,108],[130,104],[154,110],[174,122],[96,128],[120,124],[146,126],[164,130]]
+  for(const[x,y]of pile)kernel(c,x,y,x*.1)
+  for(const[x0,vx,h,o]of[[100,-50,80,0],[150,46,70,.35],[124,10,88,.7]]){
+    const p=(t*1.5+o)%1,x=x0+vx*sin(PI*p),y=112-h*4*p*(1-p)
+    kernel(c,x,y,p*T*(vx>0?1:-1),1.1)
+  }
+  c.lineWidth=7
+  const bucket=()=>{c.beginPath();c.moveTo(68,132);c.lineTo(188,132);c.lineTo(172,238);c.lineTo(84,238);c.closePath()}
+  bucket();c.fill()
+  c.save();bucket();c.clip();c.fillStyle='#111'
+  for(const k of[-1,1])c.beginPath(),c.moveTo(128+k*30-10,132),c.lineTo(128+k*30+10,132),c.lineTo(128+k*25+8,238),c.lineTo(128+k*25-8,238),c.fill()
+  c.restore();bucket();c.stroke()
+  c.beginPath();c.roundRect(62,126,132,14,5);c.fill();c.stroke()
+}