List of known point type names:
  dot
  plus
  cross
  star
  dot-square
  dot-circle
  dot-triangle
  dot-diamond
  dot-pentagon
  fill-square
  fill-circle
  fill-triangle
  fill-diamond
  fill-pentagon
  square
  circle
  triangle
  diamond
  pentagon
  opaque-square
  opaque-circle
  opaque-triangle
  opaque-diamond
  opaque-pentagon