[cssom-1] Improve accuracy of <color> serialization

[mathiasbynens]

Either the word "integer" was missing from most of these steps, or it was accidentally added in one step. This patch assumes the former.

[svgeesus]

CSS WG decided at the A Coruna meeting to move the color serialization from CSS OM to Color 4.

Also, while implementations were historically limited to 8 bits (and thus, integers in the range 0 to 255) this is being changed, to allow higher precision while keeping the historical 0 to 255 range; thus, these would no longer be integers.

These values come from the fact that many graphics engines store the color channels internally as a single byte, which can hold integers between 0 and 255. Implementations should honor the precision of the channel as authored or calculated wherever possible. If this is not possible, the channel should be rounded to the closest value at the highest precision used, rounding up if two values are equally close.
https://drafts.csswg.org/css-color-4/#rgb-functions

[mathiasbynens]

Also, while implementations were historically limited to 8 bits (and thus, integers in the range 0 to 255) this is being changed, to allow higher precision while keeping the historical 0 to 255 range; thus, these would no longer be integers.

Thanks. I’ve updated the patch accordingly.

[emilio]

I think we should merge this change, but the IPR bot is angry :(

[emilio]

Anyhow looks good.

[mathiasbynens]

The IPR bot report takes me to https://www.w3.org/2004/01/pp-impl/32061/join, which explains there's a form I should fill out, but all links point to the same document (which doesn't contain any forms as far as I can tell). 🤔 Is there a way for me to waive my IPR on this silly one-word patch? I am a W3C invited expert and work for a W3C member organization.

[mathiasbynens]

Marked as non substantive for IPR from ash-nazg.

[svgeesus]

The IPR bot report takes me to https://www.w3.org/2004/01/pp-impl/32061/join, which explains there's a form I should fill out,

That is the "join the CSS WG" form, which is filled out by the AC Rep not the participant.

I suspect your W3C account and your GitHub account are not linked, so the bot does not know who you are.