sketch
function setup() {
createCanvas(400, 300);
}
function draw() {
background(0);
var x = 0;
var y = 0;
var x1 = width/2;
var y1 = height/2;
var x2 = width/2;
var y2 = height/2;
var x3 = width
var y3 = height
var x4 = width/2;
var y4 = width/2;
for (var i = 0; i < 50; i++) {
stroke('red');
line(x1, height, width, height - y1);
stroke(67, 21, 32);
line(x2, height, width, height - y2);
stroke('red');
line(width - x1, 0, 0, y1);
stroke(67, 21, 32);
line(width - x2, 0, 0, y2);
stroke(255);
line(x3, 0, x, y2);
stroke('red');
line(x4, 0, width, y4);
stroke(67, 21, 32);
line(x2, 0, width, y2);
x1 = x1*1.08;
y1 = y1*1.08;
x2 = x2*1.025;
y2 = y2*1.025;
x4 = x4*1.08;
y4 = y4*1.08;
}
}