Of course it doesn't need to be one or the other. You can still use CSS to give the highlight a uniform colour, while allowing for reader modes to still have th

Of course it doesn't need to be one or the other. You can still use CSS to give the highlight a uniform colour, while allowing for reader modes to still have the highlights and have the accessibility of the screen readers speak the highlight. Semantic markdown and CSS should ideally be seen as complementary and be used as such.