JToggleButton button = new JToggleButton(
IconLoader.getInstance().getIcon(getResourceString(prefix + ".icon")));
button.setMargin(new Insets(1, 1, 1, 1));
String command = getResourceString(prefix + ".command");
button.setActionCommand(command);
button.addActionListener(this);
toolbar.add(button);
button.setToolTipText(getResourceString(prefix + ".tooltip"));
buttonMap.put(AppCommand.getCommand(command), button);
if (aButtonGroup != null) {
aButtonGroup.add(button);