public void selectDomainFolder(DomainFolder domainFolder) {
		TreePath treePath = getTreePath(domainFolder);
		tree.expandAndSelectPaths(List.of(treePath));
	}
Select the root data folder (not root node in the tree which shows the project name).
Ghidra/Framework/Project/src/main/java/ghidra/framework/main/datatree/ProjectDataTreePanel.java