Containers

Layout and container controls.

Layout

• Layout / RowFit / VBoxLayout — layout containers
• SplitPane — draggable split panel
• ScrollArea — scroll area (smooth scrolling + custom scrollbar)

Separator

import PrismQML as Fluent

Fluent.Separator { }                    // horizontal, auto-fill
Fluent.Separator { type: 1 }            // vertical

GroupBox

Fluent.GroupBox {
    title: "Group"
    // content
}

Drawer

Edge-slide panel.

Timeline

Virtualized timeline (no frame drops on large datasets).

Skin adaptation

Under neo: GroupBox / Drawer and other containers get thick black borders; Separator uses black or medium-gray depending on context (lightweight dividers use gray to avoid scroll shimmer).