Accessibility

This statement sets out how accessible the Seisin application and this website currently are, measured against the Web Content Accessibility Guidelines (WCAG) 2.2 at Level AA, and what is known not to meet that standard yet.

Conformance status

Seisin is partially conformant with WCAG 2.2 Level AA. Partially conformant means that most of the standard is met, but some parts of the product are not yet, and those parts are named below. This is a self-assessment carried out by the developer, and it has not been audited by a third party.

What is in place

Text and interface colours are chosen for contrast, and the application derives a readable colour from your chosen accent automatically, whether it fills a background (buttons, badges) or sits as text and icons on the page, so a custom accent cannot produce unreadable contrast. Light, dark and midnight themes let you choose a comfortable contrast level. The interface honours your operating system's "reduce motion" setting and suppresses animation when it is set. The website uses semantic HTML, works with browser zoom, and adapts to small screens.

On this website, the navigation is made of ordinary links and every part of each page can be reached with the keyboard. The interactive examples of the app are built from real buttons: choices are announced as selected or not, checklist items as checkboxes, and each one works with the keyboard as well as the mouse. Screenshots enlarge on click, and that view can be closed with the Escape key or the close button, with keyboard focus kept inside it while it is open and returned to where you came from when it closes. Animation is limited to the background stars, the line that follows your scroll on the home page, and short hints that run once. If you have asked your system to reduce motion, all of it stops and everything is shown in its final state.

Known limitations

The data-dense charts on the Analytics page and the interactive application map are not yet fully usable with a screen reader, and some of their content is conveyed visually without an equivalent text alternative. Keyboard-only navigation works throughout the main interface but is not yet complete in those same two areas. These are the newest and most complex parts of the application, and the accessibility work on them is planned but not yet finished.

Feedback and enforcement

If you encounter an accessibility barrier in Seisin, please report it to [email protected], or open an issue on GitHub. Please describe what you were trying to do and what assistive technology you were using, as that is usually enough to reproduce the problem. We aim to acknowledge reports within five working days.

If you are not satisfied with our response, you may raise the matter with the accessibility enforcement body in your country. Within the European Union, each member state designates its own authority under the European Accessibility Act.

Last updated October 2026