Visual hint on the chosen agent mode in VS Code extension

[ChrisPlaneta]

This is a tiny request, but would greatly help me and maybe others.

Problem

Sometimes I find myself using the wrong agent mode without knowing it. For example, yesterday I was making a plan for an application in a code mode instead of plan mode. I noticed it after about an hour of back-and-forth with an agent.

Solution

Unique visual hint that users can assign in Kilo's settings to every model, e.g. an icon or color of UI element. A tiny thing but would be great.