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sass/accepted/color-4-new-spaces-js.changes.md
Natalie Weizenbaum c0c25d5c28
[Color 4] Mark the proposals as accepted (#3833) 
Although these are still in flux (largely due to CSS changing under
our feet to some degree), it's been almost two years since we put them
out for review initially so I think it's fair to say that the core
principles are solid.

See #2831
2024-04-11 22:14:15 +00:00

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Draft 1.6

  • Simplify the type definition for interpolate, and make options argument optional.

  • Fix typo in changedValue definition of color.change.

Draft 1.5

  • Clarify that deprecated SassColor getters (e.g. red, blue, etc.) convert color to a legacy space before returning channel value.

Draft 1.4

  • In change, adjust algorithm for differentiating hwb from hsl when only hue and no space is specified.

  • In change for legacy colors, emit a color-4-api warning if a non-alpha channel is explicitly null and no space is set.

  • In procedure for Changing a Component Value, specify that undefined values should return the initialValue.

  • toSpace uses Converting a Color algorithm instead of color.to-space() to avoid removing missing channels when converting to a legacy space.

  • In change and constructors, throw an error for alpha and lightness values that are out of range.

Draft 1.3

  • Rename new Embedded Protocol message from SassColor to Color.

  • Make color2 a positional parameter of interpolate, not an option.

  • Add rec2020 color space.

Draft 1.2

  • Add "alpha" to all channel name types.

  • Remove isAlphaMissing in favor of isChannelMissing("alpha").

  • Rename types using title-case for acronyms longer than two letters in camel-case identifiers (e.g. ColorSpaceHsl instead of ColorSpaceHSL).

  • Remove generic change overload, and make space optional on others.

  • Return immutable types for channels and channelsOrNull, and remove assumption of 3 channels.

Draft 1.1

  • Clarify values in channels and channelsOrNull.

  • Throw an error if construction space can not be determined.

  • Remove alpha from list of deprecated getters.

  • Rename types: ColorSpaceLAB to ColorSpaceLab, ChannelNameLAB to ChannelNameLab.

  • Use Exclude<> instead of Omit<> for union types.

  • Make procedure for determining space backwards compatible when using change for legacy colors.

  • Fix channel names for change with oklch and lch.

Draft 1

  • Initial draft