Often people will say, “Oh, we can highlight by inverting the color.”
This may have worked great on two-color black-and-white displays, but in the world of 32-bit color this no longer is effective.
Consider the following picture. See if you can guess which one is inverted.
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| One | Two |
Answer: The one on the right is inverted.
The background color is gray, #808080. The box labelled “two” is highlighted by inversion. The inverse of #808080 is #7F7F7F, which is practically the same color.
Even if your eyes happen to be good enough to spot the difference, it’s still not a very obvious difference.
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