Looking for example at https://en.m.wikipedia.org/wiki/Special:MobileDiff/911796127?diffmode=source current history diff view in non-AMC mode:
{F31787473}
Inserted and deleted text currently features a non-Style-Guide-conform color scheme, but even more so, doesn't conform to contrast ratio requirements. Additionally, they are relying only on color (overriding browser defaults) which is another breakage of accessibility guidelines.
Background:
- In core/Vector it became a yellow/blue combination to cover red/green blindness
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- Browser default styling for `ins`/`del` elements is overwritten in MF, it adds underline and strike-through text decoration.
== Proposal
To not overcomplicate things as the long-term goal is to provide core diffing, it makes sense to show default text treatment on top of Green90/Red90 background colors.
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