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Physical sky colour engine & solar architecture
Sky Palette computes five-swatch sky palettes (Zenith, Mid-Sky, Horizon, Sun Glow, Cloud Tint) from solar geometry, live cloud layers and visibility. Community photos stay anonymous and are reviewed before publication.
To monitor application health, traffic volume, and performance (such as Largest Contentful Paint and interaction responsiveness), Sky Palette utilizes Cloudflare Web Analytics.
Sky Palette is built on strict data minimalism:
Privacy & terms:
1. Information We Do Not Collect: We do not ask for or collect names, email addresses, passwords, phone numbers, or payment data. We do not use cookies, tracking keys, or third-party advertising pixels.
2. Chosen city: Your chosen city is remembered in this browser (one key, no identifiers, no tracking).
3. Crowdsourced Sky Photos: When you submit a sky image, the Worker strips camera metadata and GPS coordinates before storing it. Submissions stay anonymous, are queued as pending, and are only published after review. Contributions are dedicated to the public domain under CC0.
4. Telemetry & Infrastructure: Usage is monitored exclusively through privacy-preserving aggregate telemetry via Cloudflare Web Analytics without tracking individual users or collecting IP addresses.
1. Open Source & Free Use: Sky Palette is free and open-source software provided under the MIT License. You are free to use generated color palettes for personal, commercial, and artistic purposes.
2. Contribution Terms: By sharing a photo through Sky Palette, you confirm you are the copyright holder and agree to irrevocably dedicate your contribution to the public domain under CC0 1.0 Universal.
3. Disclaimer: Solar physics calculations and color values are provided "as is" without warranties of any kind.
dvh layout with safe-area insets, focus-trapped dialogs and WCAG 2.2 AA checks.