<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><font class="Apple-style-span" face="Helvetica"><br></font></div><div><div>On May 3, 2011, at 11:13 AM, Ann McCarthy wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><span class="Apple-style-span" style="border-collapse: separate; font-family: Verdana; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; ">Please can we avoid this idea that colour management can or should be "disabled."</span></blockquote></div><br><div>A robust color management system has an unambiguous method for a "passthrough" option for color space transformations, so that they do not occur. This is not disabling the color management system, it's asking it for a passthrough, and in an "opt-out" method of color management, this is what you'd have to have because without an explicit request you cannot get this passthrough option: all content is subject to transforms.</div><div><br></div><div>In an opt-in method, the color management system is passive, and does not do transforms unless requested. In that sense it's dormant or inactive, unless called to do something specifically.</div><div><br></div><div>When I'm conversing with people whom I think understand these things, I will use a more concise "disable color management" vernacular to mean one of the above two things, without further qualification. Probably a better way to say it would be to "disable color transforms" or "enable a color management passthrough". </div><div><br></div><div>It's still a question in my mind how to practically construct an opt-out color management system on the various Linux distros. It seems there are more exception apps that would ultimately opt-out, compared to the number of apps that would opt-in. So I'm still wondering if the effort needs to be making it much easier for the minority of apps to opt-in, than current "opt-in" methods of implementing system color management.</div><div><br></div><div>Chris Murphy</div></body></html>