This plugin depends on the Trade library and is built if WITH_ANYIMAGEIMPORTER is enabled when building Magnum. To use as a dynamic plugin, you need to load the "AnyImageImporter" plugin from MAGNUM_PLUGINS_IMPORTER_DIR. To use as a static plugin or as a dependency of another plugin with CMake, you need to request the AnyImageImporter component of the Magnum package and link to the Magnum::AnyImageImporter target. See Downloading and building, Usage with CMake and Loading and using plugins for more information.
Detecting file type through openData() is supported only for a subset of formats that are marked as such in the list above.