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lines changed Original file line number Diff line number Diff line change @@ -3700,14 +3700,15 @@ Appendix B: Privacy Considerations</h2>
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* The {{prefers-reduced-motion}} , {{prefers-color-scheme}} , {{prefers-reduced-transparency}} ,
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{{forced-colors}} and {{inverted-colors}} queries reflect affordances for a range of special needs.
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- Properties dependent on one of the above media queries
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- may be accessed by script using several methods:
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+ Properties dependent on one of the above media queries may be accessed by script:
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- * Colors and other property values may be directly accessed through computed style.
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+ * Colors and other property values may be directly accessed through computed style,
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+ though user agents may elect to return constants for some colors
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+ (see, for example, <a href="https://drafts.csswg.org/css-color-4/#css-system-colors">CSS Color 4</a> ).
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* Layout affecting properties (such as font size) influence lengths, positions and sizes available to script.
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- UAs may disable these media features when users have expressed sensitivity to tracking.
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- Alternatively, UAs may limit the combination of features within a single page
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+ User agents may disable these media features when users have expressed sensitivity to tracking.
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+ Alternatively, user agents may limit the combination of features within a single page
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to reduce the fingerprinting power of the page.
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The {{PreferenceManager}} object allows querying some user-preference [=media features=] . This
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