diff --git a/CLAUDE.md b/CLAUDE.md
index 7aba38c..2424143 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -15,15 +15,20 @@ python generate_report.py
 
 Generate report with custom options:
 ```bash
-python generate_report.py --db pga.db --output report.html --top 10 --background background.png
+python generate_report.py --db pga.db --output report.html --top 10 --background background.png --template platinum.html
 ```
 
 ## Architecture
 
-**Single-file generator (`generate_report.py`):**
+**Report generator (`generate_report.py`):**
 - Reads Lutris SQLite database (`pga.db`) containing games, categories, and playtime data
 - Embeds all data (games JSON, background image as base64) directly into a self-contained HTML file
-- HTML template with Chart.js doughnut chart and dynamic JavaScript filtering is embedded as a string constant (`HTML_TEMPLATE`)
+- Loads HTML template from external file (default: `platinum.html`)
+
+**HTML template (`platinum.html`):**
+- Chart.js doughnut charts and dynamic JavaScript filtering
+- Mac OS 9 Platinum visual style with placeholder tokens for assets
+- Tokens like `__ALL_GAMES__`, `__BACKGROUND_IMAGE__` are replaced at generation time
 
 **Database schema (`schema.py`):**
 - Reference file documenting Lutris database structure