@Override
	public String getDisplayText() {
		// note: we have to check the name each time, as the optional underlying
		//       source archive may have changed.
		String currentDisplayText = getCurrentDisplayText();
		if (!displayText.equals(currentDisplayText)) {
			displayText = currentDisplayText;
			fireNodeChanged();
		}
		return displayText;
	}
Returns true if this dataType node uses and editor that is different than Java's default
editor.

@return true if this dataType node has a custom editor.
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/datamgr/tree/DataTypeNode.java