New plug-ins may be created from scratch or from an existing Quartz composition file. If you already have a composition file ready, click the "New Plug-In from Composition" button:

When the following sheet appears, select the Quartz composition file by clicking the "Choose..." button.

Once a file is selected, you will be able to specify its name, type, group and author. Enter the desired settings and click the "Create" button to finish creating the plug-in.
