Update accessibility-best-practices-for-your-project.md

[ChasBelov]

Add comments regarding "reduce motion" to Motion and Animation section

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While there is a mention in the checklist of prefers reduced motion, it was not mentioned under Motion and Animation. I believe additional detail belongs there. In particular, there is misunderstanding around the word "reduce." That is an artifact of history because Apple got there first. Non-Apple operating systems use setting wording that imply animation on or off. However, because it is a toggle in all systems, there is no way to know whether the user would prefer minimal animation or absolutely no animation.

I've added brief (I hope) text addressing this in the Motion and Animation section.

[patrzyszco78-png]

G

[ahpook]

I understand your point but I don't think the text you provided clarifies the original statement. Could you reword the original sentence in a way that incorporates the differences you're trying to capture? How about simply:

"Avoid unnecessary animation if the operating system indicates the user has requested reduced or zero motion"

[ChasBelov]

I understand your point but I don't think the text you provided clarifies the original statement. Could you reword the original sentence in a way that incorporates the differences you're trying to capture? How about simply:

"Avoid unnecessary animation if the operating system indicates the user has requested reduced or zero motion"

Updated, thank you.

[ahpook]

I left off the editorializing but will merge and deploy this.

[ChasBelov]

Thank you for the merge. Just for the record, I had included the details regarding the differences between systems because often, when discussions of this setting come up, the implemented name for the setting in CSS "prefers-reduced-motion" is taken by some commenters as not meaning a request to remove all animation because of the name, when it's only what Apple, who got there first, called it (but didn't provide a corresponding setting for no animation).