Privacy and storage

This site is a static page with no analytics, no tracking, and no third-party cookies. It stores at most two small things on your device, each only after you explicitly ask for it: one first-party cookie (srbf_colors) after you change a series colour, holding your colour overrides so the chart looks the same when you return; and one localStorage entry (srbf_theme) after you pick Light or Dark with the header toggle (the default Auto setting follows your device and stores nothing). Neither contains personal data and neither is sent anywhere; the page is fully client-side. Reset all colours deletes the cookie, and switching the theme back to Auto deletes the theme entry. Because both exist solely to fulfil preferences you explicitly request and carry no tracking, they are functional/strictly-necessary storage under the GDPR / ePrivacy Directive and require no consent banner; this notice is provided for transparency.