Description of the new feature/enhancement

The new Settings UI in terminal utilizes expanders to group settings controls, which matches up with the other inbox apps shipped in Windows 11. Something that I believe should be added (both for the sake of consistency and visual hierarchy) is expander icons.

At the moment, most inbox apps add an icon prefixed before each settings group that conveys it's semantic meaning. This both looks nice and makes it easier to quickly differentiate between groups.

Current:

Notepad:

Clock:

It's worth noting that not every app does this. For example, Snipping Tool has no icons in it's expanders, although I do still believe this could be an improvement.