Border (pixels >=0)
Horizontal (integer >0)
Vertical (integer >0)
Lines (integer >=0)
Hexradius (pixels >=1)
Wallthickness (pixels <=Hexradius
Centersize (pixels <=Hexradius*sin(Pi/3))

Color controls:
Vary Hexagon Colors
Hue of 1st hexagon. (degrees)
Saturation (percent 0 to 100)
Brightness (percent 0 to 100)