@Override
	public void setFont(Font f) {
		super.setFont(f);
		checkForInvalidSetFont(f);
	}
Sets this renderer's fixed width theme font id.  
@param fontId the font id
@see Gui#registerFont(Component, String)
Ghidra/Framework/Docking/src/main/java/docking/widgets/AbstractGCellRenderer.java