2011

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The area on the left displays the same parameters that are shown in User mode,
as well as two buttons to add and delete parameters. Parameters cannot be
edited, only added and removed.
Clicking the Add button pops up a modal dialog where the user types in the
name of the parameter, its minimum, maximum, and default values, as well
as the minimum increment to be used when changing the value in the UI.
Additionally, clicking the Hidden button means that a particular parameter
will only appear in Develop mode. This modal dialog also includes a Cancel
button.
Clicking the Delete button pops up a menu where you select the parameter
to be removed.
The Develop controls are to the right of the Parameter controls. The File and
Edit radio buttons control whether the PXL script source is read from an
external file, or from the Composite internal editor.
442 | Chapter 18 Pixel Expressions