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Or you use the extra distinct highlight or background color the system theme specifies.

• gmueckl 7y ago
  That is not enough. What if I need three clearly distinguishable background colors to convey different states for list entries?
  • anoncake 7y ago
    Then you should fix your app so it can be used by color-blind users. Aside from that, you should use distinguishable background colors A, B and C specified by the system color theme. It's more likely that its designer has considered accessibility issues than that every single app developer has.
    • gmueckl 7y ago
      Have you looked at the set of colors that is actually defined by a theme? That is my point: I would use these colors gladly if they were there. They aren't.