I am newbie in Swift and I have a problem.

My app has 2 Lists, problem is the scroll content background creates too much space (red part in image attached), so the distance of 2 lists is so far.

How to remove this backgound or at least make it fit with the row content.
I tried

.scrollContentBackground(.hidden)

but it just transparent the background, blank space still there.
Here is my code of List:

List {
                Section {
                    ForEach(session) { session in
                        ZStack {
                            
                            NavigationLink(destination:
                                            TaskDetailView(nameTask: session.name)){
                                EmptyView()
                            }
                                            .opacity(0.0)
                        }
                    }
                } header: {
                    Text("")
                        .foregroundColor(.colorGrayDark)
                        .font(.system(size: 17))
                        .fontWeight(.regular)
                }
                .textCase(nil)
            }
            .padding([.leading, .trailing], -16)
            .padding(.top, -32)
            .listRowSpacing(4)
            .listStyle(SidebarListStyle())
            .toolbarTitleDisplayMode(.inline)
            .scrollContentBackground(.hidden)
            .background(.red)