bug#8402: Acknowledgement (24.0.50; Hex colors are not rendered correctly on OS X (Cocoa))

[Steve Purcell]

The behavior I am seeing (and had taken to be incorrect) is possibly a result 
of misunderstanding Emacs' color handling, and if that's the case then please 
feel free to close this bug.

Specifically, it seems like the colors I *wanted* to see (and had applied as 
hex colors to Emacs' faces) were sRGB colors, but if I convert those sRGB 
colors to "Generic RGB" values in Apple's "Colorsync Utility" and then plug 
them into Emacs, I get the desired sRGB screen colors.

So are Emacs' RGB colors explicitly Generic RGB rather than sRGB? I'm pretty 
sure the answer must be "yes", and that the bug should be closed.


On 1 Apr 2011, at 12:03, Steve Purcell wrote:

> I should add that I don't see any mention of 'screen-gamma in the frame 
> parameters, and setting different values, e.g. with the following code, has 
> no effect.
> 
> (set-frame-parameter (selected-frame) 'screen-gamma 1.5)