Function parent_scroll_clip_rects 

pub fn parent_scroll_clip_rects(
    main: &mut World,
    parents: &HashMap<Entity, Entity>,
) -> HashMap<Entity, (Vec2, Vec2)>

Returns the nearest clipping-ancestor rect (origin and size in window coordinates) for every entity.

• A clipping ancestor is one carrying a crate::input::Scroll component or a crate::components::Style with overflow_x or overflow_y set to crate::components::Overflow::Hidden.
• Entities without a clipping ancestor are absent from the returned map.
• Rects are on-screen: a clipper nested inside a scrolled container is shifted by that container’s crate::input::ScrollOffset, the same shift every leaf under it gets (see parent_scroll_offsets). Its own offset is not applied - a scroll box moves its content, not its own frame.