[FEATURE] Add setting to disable, lower transparency, or computer-use action highlight overlay theme

Preflight Checklist

• [x] I have searched existing requests and this feature hasn't been requested yet
• [x] This is a single feature request (not multiple features)

Problem Statement

During computer use on macOS & Windows, Claude draws a visual highlight on screen
marking where it's about to click/type. It's useful for transparency but
distracting when I'm watching a long session or working alongside it.

Proposed Solution

Add a way to disable (or dim) the action-highlight overlay. Ideas:

• settings.json key, e.g. "computerUse": { "actionHighlight": "off" | "dim" | "on" }
• or an env var, e.g. CLAUDE_CODE_DISABLE_ACTION_HIGHLIGHT=1

Keep "on" as the default for safety/transparency; make opt-out available.

Alternative Solutions

• Highlight can't currently be disabled via any documented setting

(checked CLI computer-use doc, Cowork/Desktop help, keybindings/config refs).

• Terminal is already excluded from screenshots, so a config surface for

computer-use visuals already partially exists.

Priority

Low - Nice to have

Feature Category

Configuration and settings

Use Case Example

_No response_

Additional Context

_No response_