[FEATURE] Allow independent font size adjustment across Desktop modules (Chat / Cowork / Code)

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

Claude Desktop has three modules: Chat, Cowork, and Code. There is currently no way to
adjust font sizes independently for each module, and the default sizing feels poorly balanced:

• The Chat module's font size is too large
• The Code module's font size is too small — ALL text in the Code module, not just code

snippets, but conversation text, explanations, everything

Additionally, the overall text rendering in the Code module feels like a significant
regression compared to the terminal-based Claude Code experience. The presentation lacks
visual hierarchy and readability — it feels more like reading raw logs than having an
interactive coding conversation. The terminal version actually looks and feels better,
which defeats the purpose of having a dedicated Desktop app module.

Proposed Solution

1. Add per-module font size controls (or at least a font scale setting), e.g.:

• Chat module font size
• Code module font size

1. Improve the overall text rendering quality in the Code module:

• Better visual hierarchy between different types of content
• Proper spacing, line height, and typography
• The Desktop Code module should feel like an upgrade over the terminal, not a downgrade

1. At minimum, allow independent zoom levels per module (e.g., Cmd+/- that applies

only to the active module and persists across sessions)

Alternative Solutions

_No response_

Priority

Medium - Would be very helpful

Feature Category

Configuration and settings

Use Case Example

I switch between Chat and Code modules throughout the day. In Chat, the text is
oversized and wastes screen space. In Code, everything is too small and strains my
eyes. I can't use system-level zoom (Cmd+/-) to fix one without making the other worse.

The Code module's text rendering also needs attention — the terminal-based Claude Code
has better readability. A Desktop GUI module should be an improvement over a terminal
experience, not a step backward.

Additional Context

Platform: macOS
This feedback applies to Claude Desktop app modules (Chat / Cowork / Code),
not the CLI version of Claude Code.