Correct values for semi-transparent hex colors #8153
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Hex colors are typically encoded with the sRGB transfer function.
In this case, the values specified here translate directly to
SkColors (which are defined by Skia to be sRGB).
Therefore, the value corresponding to N% of a color is actually
255 * LinearToSRGB(N / 100).
This CL corrects that logical error.
In the short term, this will make blacks appear darker and whites
appear lighter. Once color correct Skia is enabled, the colors
will look similar to how they appear now (though this is
dependent on the background).
#8152