On Fri, 6 Jul 2018 11:45:30 -0400, David Purdy wrote:

>When I worked at Tektronix in the '80s, their display folks found a blue 
>backgound with yellow letters provided good contrast with the least eyestrain. 
> I've used that combination ever since. YMMV with newer monitors and drivers.
> 
That sounds perilously close to "vibration":
    https://www.ece.cmu.edu/~ganger/712.fall02/papers/p761-thompson.pdf

Examples from that page:
    https://cms-assets.tutsplus.com/uploads/users/30/posts/25621/image/vomit.svg

-- gil

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