Privacy
Last updated: November 2026
The name and contact details of the organisation responsible for this website will be added here.
What this website does not do
This website sets no cookies, uses no analytics or tracking, embeds no third-party content and has no forms. Fonts are delivered from this website itself, so your browser does not contact font services.
Your theme choice
If you switch between the light and dark theme, that choice is stored in your browser's local storage under the key "sigma-theme", so the site remembers it. It never leaves your device. You can remove it by clearing the site data in your browser.
Demos
The interactive demos run entirely in your browser on synthetic data that ships with the page. Nothing you do in them is sent anywhere.
Hosting
Like any website, the server that delivers these pages may briefly process technical data such as your IP address and the pages requested, in order to deliver and secure the site. Details about the hosting provider will be added here.
Contact
Questions about privacy can be sent to the contact address in the footer once it is published.