color a = #CBEBE3;
color b = #B0E0D4;
color c = #E5F5E8;

size(300,300);
smooth();
noStroke();
ellipseMode(CENTER_DIAMETER);
rectMode(CENTER_DIAMETER);

background(c);

fill(a);
ellipse(234,23,256,256);

translate(-20,-3,0);

fill(b);
ellipse(160,160,34,34);

rect(149,172,6,6);
stroke(b);

line(146,175,135,190);
line(135,190,125,217);
line(125,217,114,235);
line(114,235,91,256);