RUM-9561 Update view schema to add accessibility attributes

[barboraplasovska]

Adds new accessibility parameters to the RUM View schema.

• text_size - User’s preferred text scale relative to the default system size.
• screen_reader_enabled - Indicates whether a screen reader is currently active.
• bold_text_enabled - Indicates whether the system-wide bold text accessibility setting is enabled.
• reduce_transparency_enabled - Indicates whether the system-wide reduce transparency setting is enabled.
• reduce_motion_enabled - Indicates whether the system-wide reduce motion setting is enabled.
• button_shapes_enabled - Indicates whether the system-wide button shapes setting is enabled.
• invert_colors_enabled - Indicates whether the system-wide color inversion setting is enabled.
• increase_contrast_enabled - Indicates whether the system-wide increase contrast setting is enabled.
• assistive_switch_enabled - Indicates whether an alternative input method like Switch Control or Switch Access is currently enabled.
• assistive_touch_enabled - Indicates whether the system-wide AssistiveTouch feature is currently enabled.
• is_video_autoplay_enabled - Indicates whether the video autoplay setting is enabled in the system or application.
• closed_captioning_enabled - Indicates whether closed captioning is enabled for media playback.
• mono_audio_enabled - Indicates whether the system-wide mono audio setting is enabled.
• shake_to_undo_enabled - Indicates whether the Shake to Undo feature is enabled.
• reduced_animations_enabled - Indicates whether the user prefers reduced animations or cross-fade transitions.
• should_differentiate_without_color - Indicates whether the system should differentiate interface elements without relying solely on color.
• grayscale_enabled - Indicates whether the device display is currently using grayscale mode.
• single_app_mode_enabled - Indicates whether the device is currently locked to a single app through Guided Access or Screen Pinning.
• on_off_switch_labels_enabled - Indicates whether on/off switch labels are enabled in the system settings.
• speak_screen_enabled - Indicates whether the Speak Screen feature is enabled.
• speak_selection_enabled - Indicates whether the text-to-speech selection feature is enabled.

[hemeryar]

lgtm

[mormubis]

❓ question: ‏ What is the difference between reduce_motion_enabled and reduced_animations_enabled? In the browser, we expect animations to be reduced or removed when we detect the prefers-reduced-motion flag.

[barboraplasovska]

reduce_motion_enabled indicates whether the Reduce Motion setting is in an enabled state. (doc)
reduce_animations_enabled indicates whether the Reduce Motion and the Prefer Cross-Fade Transitions settings are in an enabled state. (doc)

[mormubis]

It seems that reduce_motion is only available on iOS, while Android and the web focus more on animations. Should we consolidate this into a single value?

[barboraplasovska]

Thanks for the suggestion !
Just to give some context, we aligned on these two attributes a while ago through multiple RFCs, and they’re already being sent as custom attributes behind a feature flag. The implementation has been released in the iOS SDK and is currently being dogfooded in the iOS mobile app, where it's also used to populate a dashboard.
At this stage, the work is already quite far along, so I don't think it would make sense to revisit the structure unless there's a critical issue.

[barboraplasovska]

/merge

[dd-devflow-routing-codex]

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2025-07-17 14:12:00 UTC ℹ️ Start processing command /merge

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2025-07-17 14:12:29 UTC ℹ️ MergeQueue: pull request added to the queue

The expected merge time in master is approximately 8m (p90).

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2025-07-17 14:22:30 UTC ℹ️ MergeQueue: This merge request was merged