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[imsc] "green" is not quite green

From: Michael A Dolan via GitHub <sysbot+gh@w3.org>
Date: Mon, 19 Dec 2016 16:43:04 +0000
To: public-tt@w3.org
Message-ID: <issues.opened-196462303-1482165782-sysbot+gh@w3.org>
mikedo has just created a new issue for https://github.com/w3c/imsc:

== "green" is not quite green ==
A curiosity of named colors (inherited from SVG) is that “green”,  
unlike almost all other named colors, is only half-luminance. There is
 no named color for full luminance green (although some think it is 
“lightGreen” which is incorrect).  One must use the #rrggbb syntax to 
get full luminance green.

It matters in US closed captions since “green” in CTA-708 is full 
luminance.

Example 12 uses green and it is in fact set by “#00FF00”. It might be 
worth a Note about this peculiarity that "green" is not quite green.  
Or consider elevating to TTML1/TTML2.



Please view or discuss this issue at 
https://github.com/w3c/imsc/issues/190 using your GitHub account
Received on Monday, 19 December 2016 16:43:10 UTC

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