Platform Category Tree Clarity (Mouse Navigation Visual Improvements)

Overview

In the platform category tree, when multiple categories, subcategories, platforms, and playlists are expanded, it can be difficult to visually distinguish where one group ends and another begins—especially when navigating with a mouse.

However, when browsing the tree using the keyboard, a helpful white rectangle highlight appears around all child nodes of the selected item, making it much easier to see the structure.

Request

Add an option to display the same white highlight box when navigating the platform tree with a mouse, not just with the keyboard.

This would improve clarity and organization when exploring complex trees with many expanded nodes, making it easier to understand the hierarchy at a glance—regardless of input method.