Apple Motion 2 Tutorials - Manual (Page 164)

164 Tutorial 4 Working With Particles
4 In the file stack, select the Embryo particle preset.
A preview of the particle system appears in the Preview area.
5 In the Preview area, click Apply to add the preset to the project.
The Embryo preset appears in the Canvas and in the particles layer, along with the
particle emitter’s cell source, an object named Blur01. The Blur01 object is a PNG file.
Examine the source file in the Media tab.
To view the Embryo cell source:
1 Click the Media tab.
2 Select Blur01.png.