Catthode for Home Assistant

From CRT to OLED. Bringing warmth back to a world of cold themes. cattho.de

A warm OLED theme for Home Assistant dashboards, cards, dialogs, controls, state colors, and code editors.

Validated in a disposable Home Assistant Core profile:

Install with HACS

First make sure Home Assistant loads themes from its themes directory. Add this to configuration.yaml (or merge the themes entry into an existing frontend block), then restart Home Assistant once:

frontend:
  themes: !include_dir_merge_named themes

Until the default HACS catalog submission is accepted:

1. Open HACS.
2. Choose Custom repositories.
3. Add https://github.com/catthode/home-assistant as category Theme.
4. Download Catthode Theme.
5. Run the frontend.reload_themes action from Developer Tools (or restart Home Assistant).
6. Select Catthode under your profile’s Theme setting.

Manual installation

Copy themes/catthode.yaml into your Home Assistant themes directory, ensure the frontend configuration above is present, then run frontend.reload_themes or restart Home Assistant.

What is included

• One dark-mode theme named Catthode.
• Warm amber, gold, clay, wheat, and muted green semantic colors.
• Warm graph, history, weather, energy, state, and code-editor aliases to avoid cold default accents.
• No custom cards, integrations, services, telemetry, or external runtime dependencies.

Validation

CI parses the YAML, checks required semantic tokens, and runs the official HACS theme validator. The repository also includes privacy-safe dashboard, profile, and entity-dialog captures from a disposable Home Assistant Core validation profile.

The theme is intentionally limited to Home Assistant’s supported theme variables; individual custom cards or integrations may define their own styling outside a theme’s control.

License

MIT