FLA file assets

When creating a component, you start with a FLA file and add skins, graphics, and other assets. You can store these assets anywhere in the FLA file, because Flash component users need only a compiled component file and not the source assets.

You use two-frame, two-layer SWF files when creating components in Flash. The first layer is an actions layer, which points to the component's ActionScript class file. The second layer is an assets layer, which contains graphics, symbols, and other assets used by the component.