void dispose() {
		bookmarkTable.getModel().removeTableModelListener(listener);
		bookmarkTable.dispose();
		threadedTablePanel.dispose();
		tableFilterPanel.dispose();
		bookmarkTable = null;
		tool = null;
		program = null;
		model = null;
	}
Size the columns such that the interesting ones are wider than the uninteresting columns.
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/bookmark/BookmarkProvider.java