On Friday, November 21, 2014 2:12:21 AM UTC+1, Daniel Baird wrote: > > I answered at github, but basically those magic numbers are how you get a > luminance value from an RGB colour. Interesting isn't it, green is the > major contributor to perceived brightness.. >
> The contrast formula is here: http://www.w3.org/TR/AERT#color-contrast > The reason, why it is that way can be seen here: http://micro.magnet.fsu.edu/primer/lightandcolor/humanvisionintro.html Search for green and see the including and following paragraphs :) -m -- You received this message because you are subscribed to the Google Groups "TiddlyWiki" group. To unsubscribe from this group and stop receiving emails from it, send an email to tiddlywiki+unsubscr...@googlegroups.com. To post to this group, send email to tiddlywiki@googlegroups.com. Visit this group at http://groups.google.com/group/tiddlywiki. For more options, visit https://groups.google.com/d/optout.
