Context window usage hint instead of plan usage?

Hi, I use /compact a lot to avoid context window issues and I have one suggestion:

The plan usage hint:

Is nearly useless for us company employees I think, the limit is quite large and the UI never shows any useful value (at least for me).

What is very much useful though is the context window usage, I always keep clicking and expanding in the "session details" view at the top:

From there I can see the current context window usage and what components are using what portion, in order to decide if it's good time to invoke compact or rather start another session etc.
It would be awesome if we could configure the app to replace the wasted plan usage hint with context window hint. It can carry the same information as in the details block by rendering as a multiple-colored-sections circle, ie. we'd know at a glance how much we consumed for messages, how much is free space etc. mouse hover would then give us same info as in the session details pane.

まず、issue に記載されているプラン使用量のヒントとセッション詳細ビューを調べ、表示される使用量データがどこから来ているのかを追跡します。アプリがヒントでコンテキストウィンドウの使用量をどのように公開できるか、また置き換えを設定可能にすべきかを判断します。ヒントに要求されたコンテキスト使用量の内訳が表示され、指定された操作に対応できれば完了です。

索引モデルが issue の本文から書いたものです。