proxySource

The FootageSource being used as a proxy. The attribute is read-only; to change it, call any of the AVItem methodsthat change the proxy source: setProxy , se

color

The color used to draw the mask outline as it appears in the user interface Composition panel, Layer panel, and Timeline panel .Array of three floating-poin

useProxy

When true, a proxy is used for the item. It is set to true by all the SetProxy methods, and to false by the SetProxyToNone method.Boolean; read/write.

id

A unique and persistent identification number used internally to identify an item between sessions. The value of the ID remains the same when the project is

hasTrackMatte

True if the layer in front of this layer is being used as a track matte on this layer. When true, this layer’s track -MatteType value controls how the matte

linearBlending

True if linear blending should be used for this project; otherwise false.Boolean; read/write.

isTrackMatte

True if this layer is being used as a track matte for the layer behind it.Boolean; read-only.

ImportOptions object

The ImportOptions object encapsulates the options used to import a file with the Project.importFile methods.The constructor takes an optional parameter, an

renderer

The current rendering plug-in module to be used to render this composition, as set in the Advanced tab of the Composition Settings dialog box. Allowed value

buildName

The name of the build of After Effects being run, used internally by Adobe for testing and troubleshooting.String; read-only.