---
title: "Session: dark-mode-and-theme-tokens — 2026-10-22"
type: source
tags: [opencode, session-transcript, demo]
date: 2026-10-22
source_file: raw/sessions/pixel-dash/2026-10-22-dark-mode-and-theme-tokens.md
sessionId: demo-951437147030
slug: dark-mode-and-theme-tokens
project: pixel-dash
started: 2026-10-22T18:05:00+00:00
ended: 2026-10-22T19:35:00+00:00
cwd: /home/dev/code/pixel-dash
gitBranch: feat/theme
permissionMode: default
model: qwen3-coder
user_messages: 1
tool_calls: 4
tools_used: [Bash, Edit, Write]
tool_counts: {"Write": 2, "Edit": 1, "Bash": 1}
token_totals: {"input": 9000, "cache_creation": 18000, "cache_read": 54000, "output": 3000}
turn_count: 1
hour_buckets: {"2026-10-22T18": 4, "2026-10-22T19": 7}
duration_seconds: 5400
is_subagent: false
---

# Session: dark-mode-and-theme-tokens — 2026-10-22

**Project:** `pixel-dash` · **Branch:** `feat/theme` · **Mode:** `default` · **Model:** `qwen3-coder`

## Summary

Introduced design tokens as CSS custom properties, a system-aware dark mode with a manual override persisted in localStorage, and fixed three charts that hard-coded colors.

## Conversation

### Turn 1 — User

Add dark mode that follows the OS but can be overridden.

### Turn 1 — Assistant

Tokens in `:root` and `[data-theme=dark]`, a tiny `useTheme` hook, and an inline script in `index.html` that sets the theme before first paint to avoid a flash.

**Tools used in this turn:**

- `Write`: src/theme/tokens.css
- `Write`: src/theme/useTheme.ts
- `Edit`: index.html — pre-paint theme script
- `Bash`: pnpm test — 24 passed

## Connections

- [[pixel-dash]]
- [[DesignTokens]]
- [[DarkMode]]
- [[CSSCustomProperties]]