fix stretch
@ -262,7 +262,7 @@ class ListWidget : public QWidget {
outer_layout.addLayout(&inner_layout);
inner_layout.setMargin(0);
inner_layout.setSpacing(25); // default spacing is 25
outer_layout.addStretch();
outer_layout.addStretch(1);
}
inline void addItem(QWidget *w) { inner_layout.addWidget(w); }
inline void addItem(QLayout *layout) { inner_layout.addLayout(layout); }