Name: curlytree
Description: "Curly Tree"
Color: white
Definitions:
{
A -> F
B -> F
}
Angle: 30.0
AngleIncrement: 30.0
AngleScale: 1.3
LengthScale: 1.25
Axiom: F
Rules:
{
F -> A[f][+ B
B -> F
}

Name: seashape
Description: "Seashape"
Color: "white"
Angle: 135.0
AngleIncrement: 1.0
Width: 1.0
WidthIncrement: 1.0
Length: 1.0
LengthScale: 1.1
Axiom: F
Rules:
{
F -> F+F-F
}

A smooth transition from a cross-like shape to the Sierpinski triangle.

The evolution of the colon:

Name: colon
Description: "Colon"
Angle: 30.0
Axiom: F
Rules:
{
F -> F+F|F
}

Name: siercarpet
Description: "Sierpinski Carpet"
Color: "white"
Angle: 90.0
AngleIncrement: 1.0
Width: 1.0
WidthIncrement: 1.0
Length: 1.0
LengthScale: 3.0
Axiom: F+F+F+F+
Rules:
{
F -> [<-f+f-F+F+F+F|fff-F+F+F+F]F
+ -> +
}

Name: plume
Description: "Plume"
Definitions:
{
A -> F-F-
}
Angle: 10.0
AngleIncrement: 1.0
Width: 1.0
WidthIncrement: 2.0
Length: 1.0
LengthScale: 1.0500000000000114
Axiom: A
Rules:
{
A -> A<[A]
}