public boolean isFilteringEnabled() {
		return isFilteringEnabled;
	}
Hides the filter field. Filtering will still take place, as defined by the
{@link GTreeFilterProvider}.

@param visible true to show the filter; false to hide it.
@see #setFilteringEnabled(boolean)
Ghidra/Framework/Docking/src/main/java/docking/widgets/tree/GTree.java