github.com/StephaneBunel/bresenham github.com/golang/freetype github.com/x/image/font
https://www.quantamagazine.org/how-to-create-art-with-mathematics-20151008/
v1 := -5.0
v2 := 21.0
x := math.Cos(i) + math.Cos(v1*i)/2.0 + math.Sin(v2*i)/3.0
y := math.Sin(i) + math.Sin(v1*i)/2.0 + math.Cos(v2*i)/3.0
hue := math.Mod(i*57.295779513+hueOffset, 360) // 0 to 360