@Nonnull
	default IconProvider getDirectoryIconProvider(@Nonnull Workspace workspace,
												  @Nonnull WorkspaceResource resource,
												  @Nonnull FileBundle bundle,
												  @Nonnull String directoryName) {
		return emptyProvider();
	}
@param workspace
		Containing workspace.
@param resource
		Containing resource.
@param bundle
		Containing bundle.
@param directoryName
		The full path of the directory.

@return Icon provider for the directory.
recaf-ui/src/main/java/software/coley/recaf/services/cell/icon/DirectoryIconProviderFactory.java