Sydney Cocoaheads organized a pretty spectacular accessibility event for #GAAD22 with an amazing lineup of speakers. Please check it out for a great crash course on accessibility with some of the best!
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@JanJaapdeGroot presented the ScreenReader app for #GAAD2022. An app to help anyone learn VoiceOver's gestures in a very creative and playful way.

You should convey important information in multiple modes, not just color. If you are still required to do so, at the very least you should complement that info with other modes, like symbols, if the user requested differentiation without color.
Check isReduceTransparencyEnabled to lower transparency. A great example is Spotlight. Not only transparency is removed but it keeps the main color of the background, it feels personalized and contextual but reduces noise and improves contrast.
Content © Daniel Devesa Derksen-Staats on Accessibility up to 11! is licensed under CC BY 4.0. License details