https://bugs.freedesktop.org/show_bug.cgi?id=61993
--- Comment #3 from Luke <[email protected]> --- Word 2010 appears to treat a background colour as "dark" if: 130*red + 255*green * 51*blue < 105*255 Where red, green, blue are the RGB components of the background colour as 8-bit integers (ie in the range 0 to 255). (I arrived at this formula by: - collecting some data points by experimentation with Word 2010 - guessing the form of this formula - using linear algebra with the data points to work out the coefficients - double-checking using more data points) By comparison, LibreOffice treats a background colour as "dark" if: 28*red + 151*green + 77*blue <= 38*256 (see Color::IsDark() in tools/source/generic/color.cxx, called from SwDrawTextInfo::ApplyAutoColor in sw/source/core/txtnode/fntcache.cxx) -- You are receiving this mail because: You are the assignee for the bug.
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