headerGroup.addActor(expandIcon);
headerGroup.addActor(detachIcon);
addActor(headerGroup);
expandIcon.setChecked(expanded);
}
<BUG>public void expand() {
</BUG>
if (!expandIcon.isChecked()) {
expandIcon.setChecked(true);
}

headerGroup.addActor(expandIcon);
headerGroup.addActor(detachIcon);
addActor(headerGroup);
expandIcon.setChecked(expanded);
}
public void expandPane() {
if (!expandIcon.isChecked()) {
expandIcon.setChecked(true);
