Merlin Project views are highly configurable, so you can customize them to suit your needs or your corporate design theme.
In this template the focus is on the brainstorming. No hierarchy lines, no critical path indication, no start, end, workload or completion information. Here you see only activity leafs in their groups. Items are color-coded according to their level. Some groups are collapsed as needed. The background color of expanded groups is set.
This allows you to concentrate on the parts of your project you need to set your focus on and proceed with your project planing. Creativity at its best in a colourful Mindmap.