Support different color scheme for topics deeper than level 3

I am on XMIND Pro 23.11. This is a request to include color and shape differentiators ( Styles? ) for topics lower than level 3.

You can see in the attachment that topics starting "Level 3" and lower have the same color and shape - Level 3, 4,5,6  and. I see this as a blocker for effectively organizing my content. 

I am sure others have requested similar functionality and I hope you implement this feature as quickly as possible.