Ideas to improve accessibility

[NABN00B]

I'm writing this inspired by the discussion I read at #15567. Realizing that we could do much more for general accessibility than what was demonstrated there, I collected some ideas for options and related feature requests.

UI colors:

• Grayscale and color blind friendly colors
• Invert colors?
• Disable transparency
• High contrast text
  Make UI Fg colors fully black or white depending on their Bg luminance.
• Inverse text
  Make UI Fg colors the inverse of their Bg.
• Provide a High Contrast theme
  Similar to #15567 but use simple colors everywhere.

UI text:

• Bold text
• Bigger header and InfoStyle font
  Make the size of these match the size of the usual menu items/buttons.
• Bigger item font and height
• Scroll item text
  Slowly scroll UI text if it doesn't fit into item width, instead of decreasing font.

Navigation:

• Improve screen reader support (#13272 and #11696)
• Text-to-speech integration (#16218)
• Haptic feedback on capable devices
• Extend UI sounds (#13225)
• Option for bigger (and better contrast?) scrollbar
• Option for bigger/custom mouse pointer?

Ingame:

• Provide grayscale and color blind friendly post-processing shaders
• Provide a non-transparent Button Style for touch controls?

Modern operating systems should support most of these suggestions, though my guess is that each OS does it differently and the custom UI might not support them well.

We could also get in touch with visually impaired people, both users and those who cannot use the app yet, for feedback.

More suggestions are welcome.

[iota97]

About grayscale and color-blind friendly options, I think you are confusing what "color-blind filters" are doing. They are used to simulates what a color-blind person can see so that the developers (that is supposed not color-blind) can validate that the UI looks good. Basically, if your UI works in grayscale, it will be fine for color-blind persons. By no mean there are supposed to help color-blind person to navigate the UI, is a developer thing only.

This seems to be a widespread misconception apparently: https://www.reddit.com/r/nvidia/comments/jx0s1h/nvidia_experiences_colorblind_filter_is_a/

PS: in general, WCAG contrast is also quite important to ensure that the screen is still readable enough under a bright sun. If you ever had the "pleasure" to look at a website on your phone when there is too much sun, and the contrast is low, you probably didn't like the experience (I recommend this argument when working on UI with people that are not sensitive about disabilities).