ColorSpiral {
fractal:
  title="Color Spiral" width=640 height=480 numlayers=1
layer:
  outalpha=0 caption="New Layer 1" opacity=100 visible=yes alpha=yes
mapping:
  center=-0.19092638672508995/-0.101110419912365075
  magn=0.458406011305223571 angle=0
formula:
  filename="zg.frm" entry="4dragons" maxiter=200 percheck=normal
inside:
  filename="reb.ucl" entry="PWCStyleTraps" transfer=linear repeat=yes
  p_type="General Astroid" p_dist=0.02 p_r=0.2 p_power=3/3 p_range=8
  p_colors=30 p_skip=yes f_fn1=cos f_fn2=sin
outside:
  filename="reb.ucl" entry="PWCStyleTraps" transfer=linear repeat=yes
  p_type="General Astroid" p_dist=0.02 p_r=0.2 p_power=3/3 p_range=8
  p_colors=30 p_skip=yes f_fn1=cos f_fn2=sin
gradient:
  smooth=no numnodes=19 index=0 color=0 index=1 color=16539820 index=46
  color=5242952 index=48 color=11272444 index=93 color=2097248 index=94
  color=2147836 index=140 color=96 index=142 color=33020 index=187
  color=4256 index=189 color=64764 index=234 color=16536 index=236
  color=7142400 index=281 color=1060864 index=283 color=16579584 index=328
  color=3158016 index=330 color=16531520 index=375 color=6291456 index=377
  color=0 index=399 color=0
alpha:
  smooth=yes position=10 numnodes=5 index=141 alpha=155 index=267 alpha=255
  index=268 alpha=0 index=342 alpha=0 index=343 alpha=236
}

zg.frm:4dragons {; Giuseppe Zito
 z = pixel ,
c4 = -0.372686
c12 = 0.85001802
c14 = 0.95828903
c20 = -0.013424
c24 = -0.698232
d1 = -0.32712901
d6 = -0.107867
  : 
 x = real(z), y = imag(z)
s0 = y
s0 = s0 -y
s0 = s0 *c4
s0 = s0 /y
s0 = s0 +y
s0 = s0 -y
s0 = s0 /y
s0 = s0 +c12
s0 = s0 -x
s0 = s0 *c14
s0 = s0 *y
s0 = s0 *c20
s0 = s0 /y
s0 = s0 +y
s0 = s0 +c24
newx = s0 
s0 = y
s0 = s0 +d1
s0 = s0 -x
s0 = s0 *d6
s0 = s0 -x
newy = s0 
z = newx + flip(newy)
 newx < 4 && newx > -4 && newy < 4 && newy > -4 
}