Update dependency sass to v1.79.3

This MR contains the following updates:

Package	Type	Update	Change
sass	dependencies	minor	1.78.0 -> 1.79.3

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Release Notes

sass/dart-sass (sass)

v1.79.3

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• Update the $channel parameter in the suggested replacement for color.red(), color.green(), color.blue(), color.hue(), color.saturation(), color.lightness(), color.whiteness(), and color.blackness() to use a quoted string.

v1.79.2

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• Add a $space parameter to the suggested replacement for color.red(), color.green(), color.blue(), color.hue(), color.saturation(), color.lightness(), color.whiteness(), and color.blackness().

• Update deprecation warnings for the legacy JS API to include a link to relevant documentation.

v1.79.1

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• No user-visible changes.

v1.79.0

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• Breaking change: Passing a number with unit % to the $alpha parameter of color.change(), color.adjust(), change-color(), and adjust-color() is now interpreted as a percentage, instead of ignoring the unit. For example, color.change(red, $alpha: 50%) now returns rgb(255 0 0 / 0.5).

• Potentially breaking compatibility fix: Sass no longer rounds RGB channels to the nearest integer. This means that, for example, rgb(0 0 1) != rgb(0 0 0.6). This matches the latest version of the CSS spec and browser behavior.

• Potentially breaking compatibility fix: Passing large positive or negative values to color.adjust() can now cause a color's channels to go outside that color's gamut. In most cases this will currently be clipped by the browser and end up showing the same color as before, but once browsers implement gamut mapping it may produce a different result.

• Add support for CSS Color Level 4 color spaces. Each color value now tracks its color space along with the values of each channel in that color space. There are two general principles to keep in mind when dealing with new color spaces:

  1. With the exception of legacy color spaces (rgb, hsl, and hwb), colors will always be emitted in the color space they were defined in unless they're explicitly converted.

  2. The color.to-space() function is the only way to convert a color to another color space. Some built-in functions may do operations in a different color space, but they'll always convert back to the original space afterwards.

• rgb colors can now have non-integer channels and channels outside the normal gamut of 0-255. These colors are always emitted using the rgb() syntax so that modern browsers that are being displayed on wide-gamut devices can display the most accurate color possible.

• Add support for all the new color syntax defined in Color Level 4, including:

  • oklab(), oklch(), lab(), and lch() functions;
  • a top-level hwb() function that matches the space-separated CSS syntax;
  • and a color() function that supports the srgb, srgb-linear, display-p3, a98-rgb, prophoto-rgb, rec2020, xyz, xyz-d50, and xyz-d65 color spaces.

• Add new functions for working with color spaces:

  • color.to-space($color, $space) converts $color to the given $space. In most cases this conversion is lossless—the color may end up out-of-gamut for the destination color space, but browsers will generally display it as best they can regardless. However, the hsl and hwb spaces can't represent out-of-gamut colors and so will be clamped.

  • color.channel($color, $channel, $space: null) returns the value of the given $channel in $color, after converting it to $space if necessary. It should be used instead of the old channel-specific functions such as color.red() and color.hue().

  • color.same($color1, $color2) returns whether two colors represent the same color even across color spaces. It differs from $color1 == $color2 because == never consider colors in different (non-legacy) spaces as equal.

  • color.is-in-gamut($color, $space: null) returns whether $color is in-gamut for its color space (or $space if it's passed).

  • color.to-gamut($color, $space: null) returns $color constrained to its space's gamut (or to $space's gamut, if passed). This is generally not recommended since even older browsers will display out-of-gamut colors as best they can, but it may be necessary in some cases.

  • color.space($color): Returns the name of $color's color space.

  • color.is-legacy($color): Returns whether $color is in a legacy color space (rgb, hsl, or hwb).

  • color.is-powerless($color, $channel, $space: null): Returns whether the given $channel of $color is powerless in $space (or its own color space). A channel is "powerless" if its value doesn't affect the way the color is displayed, such as hue for a color with 0 chroma.

  • color.is-missing($color, $channel): Returns whether $channel's value is missing in $color. Missing channels can be explicitly specified using the special value none and can appear automatically when color.to-space() returns a color with a powerless channel. Missing channels are usually treated as 0, except when interpolating between two colors and in color.mix() where they're treated as the same value as the other color.

• Update existing functions to support color spaces:

  • hsl() and color.hwb() no longer forbid out-of-bounds values. Instead, they follow the CSS spec by clamping them to within the allowed range.

  • color.change(), color.adjust(), and color.scale() now support all channels of all color spaces. However, if you want to modify a channel that's not in $color's own color space, you have to explicitly specify the space with the $space parameter. (For backwards-compatibility, this doesn't apply to legacy channels of legacy colors—for example, you can still adjust an rgb color's saturation without passing $space: hsl).

  • color.mix() and color.invert() now support the standard CSS algorithm for interpolating between two colors (the same one that's used for gradients and animations). To use this, pass the color space to use for interpolation to the $method parameter. For polar color spaces like hsl and oklch, this parameter also allows you to specify how hue interpolation is handled.

  • color.complement() now supports a $space parameter that indicates which color space should be used to take the complement.

  • color.grayscale() now operates in the oklch space for non-legacy colors.

  • color.ie-hex-str() now automatically converts its color to the rgb space and gamut-maps it so that it can continue to take colors from any color space.

• The following functions are now deprecated, and uses should be replaced with the new color-space-aware functions defined above:

  • The color.red(), color.green(), color.blue(), color.hue(), color.saturation(), color.lightness(), color.whiteness(), and color.blackness() functions, as well as their global counterparts, should be replaced with calls to color.channel().

  • The global adjust-hue(), saturate(), desaturate(), lighten(), darken(), transaprentize(), fade-out(), opacify(), and fade-in() functions should be replaced by color.adjust() or color.scale().

• Add a global-builtin future deprecation, which can be opted-into with the --future-deprecation flag or the futureDeprecations option in the JS or Dart API. This emits warnings when any global built-in functions that are now available in sass: modules are called. It will become active by default in an upcoming release alongside the @import deprecation.

Dart API

• Added a ColorSpace class which represents the various color spaces defined in the CSS spec.

• Added SassColor.space which returns a color's color space.

• Added SassColor.channels and .channelsOrNull which returns a list of channel values, with missing channels converted to 0 or exposed as null, respectively.

• Added SassColor.isLegacy, .isInGamut, .channel(), .isChannelMissing(), .isChannelPowerless(), .toSpace(), .toGamut(), .changeChannels(), and .interpolate() which do the same thing as the Sass functions of the corresponding names.

• SassColor.rgb() now allows out-of-bounds and non-integer arguments.

• SassColor.hsl() and .hwb() now allow out-of-bounds arguments.

• Added SassColor.hwb(), .srgb(), .srgbLinear(), .displayP3(), .a98Rgb(), .prophotoRgb(), .rec2020(), .xyzD50(), .xyzD65(), .lab(), .lch(), .oklab(), .oklch(), and .forSpace() constructors.

• Deprecated SassColor.red, .green, .blue, .hue, .saturation, .lightness, .whiteness, and .blackness in favor of SassColor.channel().

• Deprecated SassColor.changeRgb(), .changeHsl(), and .changeHwb() in favor of SassColor.changeChannels().

• Added SassNumber.convertValueToUnit() as a shorthand for SassNumber.convertValue() with a single numerator.

• Added InterpolationMethod and HueInterpolationMethod which collectively represent the method to use to interpolate two colors.

JS API

• While the legacy API has been deprecated since we released the modern API, we now emit warnings when the legacy API is used to make sure users are aware that it will be removed in Dart Sass 2.0.0. In the meantime, you can silence these warnings by passing legacy-js-api in silenceDeprecations when using the legacy API.

• Modify SassColor to accept a new space option, with support for all the new color spaces defined in Color Level 4.

• Add SassColor.space which returns a color's color space.

• Add SassColor.channels and .channelsOrNull which returns a list of channel values, with missing channels converted to 0 or exposed as null, respectively.

• Add SassColor.isLegacy, .isInGamut(), .channel(), .isChannelMissing(), .isChannelPowerless(), .toSpace(), .toGamut(), .change(), and .interpolate() which do the same thing as the Sass functions of the corresponding names.

• Deprecate SassColor.red, .green, .blue, .hue, .saturation, .lightness, .whiteness, and .blackness in favor of SassColor.channel().

Embedded Sass

• Add Color SassScript value, with support for all the new color spaces defined in Color Level 4.

• Remove RgbColor, HslColor and HwbColor SassScript values.

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