A scene variable can be referenced in expressions. It is defined under variable.[id] unless it is public because then it is in the global namespace [id]. Could be a constant or an expression. An expression is written as ${expr}. Must be parseable/resolved as the type specified. The layers of the scene. The layers defined first will be above the ones defined after. All properties of each layer are addressable from expressions as layer.[id].[property]. layer.[id].width and layer.[id].height are always calculated based on the producer on the layer. The same syntax as in AMCP after for example PLAY 1-10. Cannot be an expression. Hides the layer if true. Can be an expression. The X coordinate of the layer in the scene coordinate system. Can be an expression. The Y coordinate of the layer in the scene coordinate system. Can be an expression. The X anchor within the layer coordinate system where position and rotation are done relative to/around. Can be an expression. The Y anchor within the layer coordinate system where position and rotation are done relative to/around. Can be an expression. The rotation of the layer around anchor_x/anchor_y expressed in degrees. Can be an expression. The X position within the layer coordinate system to crop the upper left corner. Can be an expression. The Y position within the layer coordinate system to crop the upper left corner. Can be an expression. The X position within the layer coordinate system to crop the lower right corner. Can be an expression. The Y position within the layer coordinate system to crop the lower right corner. Can be an expression. The X position within the layer coordinate system to corner pin the upper left corner. Can be an expression. The Y position within the layer coordinate system to corner pin the upper left corner. Can be an expression. The X position within the layer coordinate system to corner pin the upper right corner. Can be an expression. The Y position within the layer coordinate system to corner pin the upper right corner. Can be an expression. The X position within the layer coordinate system to corner pin the lower right corner. Can be an expression. The Y position within the layer coordinate system to corner pin the lower right corner. Can be an expression. The X position within the layer coordinate system to corner pin the lower left corner. Can be an expression. The Y position within the layer coordinate system to corner pin the lower left corner. Can be an expression. The opacity of the layer. Can be an expression. If true causes the layer to key the layer above. Can be an expression. Whether to enable mipmapping on the layer or not. Can be an expression. The blend mode to use. Can be an expression. Whether to enable chroma keying on the layer or not. Can be an expression. The degrees within 0-360 of the hue window centrum of the color to key. Can be an expression. How wide within 0.0-1.0 the hue window of the color to key should be. Can be an expression. The minimum saturation within 0.0-1.0 of the color to key. Can be an expression. The minimum brightness within 0.0-1.0 of the color to key. Can be an expression. How soft the chroma key window should be within 0.0-1.0. Can be an expression. How much of the chroma fringing should be left within 0.0-1.0. Values below 1.0 gradually replaces the fringe with a gray scale and more transparent equivalent. Can be an expression. Defined how dark the spill replacement gray scale should be. The default is 2.0 but can be anywhere between 0.0 and up. Can be an expression.