You can turn off the transparency in the accessibility settings. Sure products could be 100% accessible out of the box but unless you had some sort of limit on

You can turn off the transparency in the accessibility settings. Sure products could be 100% accessible out of the box but unless you had some sort of limit on that it would likely make the experience worse for the majority of users. I can’t imagine Helvetica Neue Extra Light was particularly accessible as the system font a decade ago - but there were accessibility settings.