app.project.item(index).mainSource.invertAlpha
app.project.item(index).proxySource.invertAlpha
Description
When true, an alpha channel in a footage clip or proxy should be inverted.
This attribute is valid onlyif an alpha is present. If hasAlpha isfalse, or if alphaMode is AlphaMode.IGNORE , this attribute is ignored.
Type
Boolean; read/write.