Accessibility overlays
https://commission.europa.eu/resources-partners/europa-web-guide/design-content-and-development/accessibility/testing-early-and-regularly/accessibility-overlays_en

アクセシビリティオーバーレイに関する、欧州委員会の公式見解が出ています。 "Claims that a website can be made fully compliant in an automated fashion are not realistic, since no tool can cover all of WCAG 2.1 level AA criteria."