https://openprocessing.org/sketch/2670647

t=3,setup=_=>{
createCanvas(w=400,w)}
draw=_=>{background(w/t,w-t,w)
t<25?t+=.05:t=3
for(i=w;i>0;i-=8,"#つぶやきProcessing"){
beginShape()
for(j=TAU;j>0;j-=PI/12)fill(i,w-t,i*i/w)+
vertex(w/2+i*cos(i/j/t),w/1.5-i*sin(i%j/t))
endShape(CLOSE)}}