hopefully improve behavior when widgets overlap

src/Widget.cpp

@@ -149,6 +149,11 @@ void Widget::handle_repaint_rect(RepaintRectEvent &event) {
 
     cr->save();
 
+    // clip to the event's invalidation rectangle. this is because widgets tend to also draw things like text,
+    // which sometimes goes outside the invalidation rectangle
+    painter.rounded_rectangle(event.box(), 0);
+    cr->clip();
+
     // clip this widget. this ensures that the background fill or children won't overflow the bounds of it
     painter.rounded_rectangle(m_rect, m_style->border_radius());
     cr->clip();