Changelog
1.79.0
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, $alpha: 50%)
now returns rgb(255 0 0 / 0.5)
.
Potentially breaking compatibility fix: Sass no longer rounds RGB channels
to the nearest integer. This means that, for example, rgb(0 0 1) != rgb(0 0 0.6)
. This matches the latest version of the CSS spec and browser behavior.
Potentially breaking compatibility fix: Passing large positive or negative
values to color.adjust()
can now cause a color's channels to go outside that
color's gamut. In most cases this will currently be clipped by the browser and
end up showing the same color as before, but once browsers implement gamut
mapping it may produce a different result.
Add support for CSS Color Level 4 [color spaces]. Each color value now tracks its color space along with the values of each channel in that color space. There are two general principles to keep in mind when dealing with new color spaces:
With the exception of legacy color spaces (rgb
, hsl
, and hwb
), colors
will always be emitted in the color space they were defined in unless
they're explicitly converted.
The color.to-space()
function is the only way to convert a color to
another color space. Some built-in functions may do operations in a
different color space, but they'll always convert back to the original space
afterwards.
rgb
colors can now have non-integer channels and channels outside the normal
gamut of 0-255. These colors are always emitted using the rgb()
syntax so
that modern browsers that are being displayed on wide-gamut devices can
display the most accurate color possible.
Add support for all the new color syntax defined in Color Level 4, including:
oklab()
, oklch()
, lab()
, and lch()
functions;hwb()
function that matches the space-separated CSS syntax;color()
function that supports the srgb
, srgb-linear
,
display-p3
, a98-rgb
, prophoto-rgb
, rec2020
, xyz
, xyz-d50
, and
xyz-d65
color spaces.Add new functions for working with color spaces:
color.to-space($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.
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.
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()
.
Add Color
SassScript value, with support for all the new color spaces
defined in Color Level 4.
Remove RgbColor
, HslColor
and HwbColor
SassScript values.
Changelog
1.78.0
The meta.feature-exists
function is now deprecated. This deprecation is
named feature-exists
.
Fix a crash when using @at-root
without any queries or children in the
indented syntax.
SourceSpan.url
would crash when a relative URL was
passed to the Sass API.Explicitly expose a sass
executable from the sass-embedded
npm package.
This was intended to be included in 1.63.0, but due to the way
platform-specific dependency executables are installed it did not work as
intended. Now users can run npx sass
for local installs or just sass
when
sass-embedded
is installed globally.
Add linux-riscv64, linux-musl-riscv64, and android-riscv64 support for the
sass-embedded
npm package.
Fix an edge case where the Dart VM could hang when shutting down when requests were in flight.
Fix a race condition where the embedded host could fail to shut down if it was closed around the same time a new compilation was started.
Changelog
1.77.7
Declarations that appear after nested rules are deprecated, because the semantics Sass has historically used are different from the semantics specified by CSS. In the future, Sass will adopt the standard CSS semantics.
See the Sass website for details.
Potentially breaking bug fix: //
in certain places such as unknown
at-rule values was being preserved in the CSS output, leading to potentially
invalid CSS. It's now properly parsed as a silent comment and omitted from the
CSS output.
Changelog
1.77.6
Changelog
1.77.4
Support passing Version
input for fatalDeprecations
as string over
embedded protocol.
Fix a bug in the JS Embedded Host where Version
could be incorrectly accepted
as input for silenceDeprecations
and futureDeprecations
in pure JS.
Changelog
1.77.3
Deprecation.duplicateVariableFlags
has been deprecated and replaced with
Deprecation.duplicateVarFlags
to make it consistent with the
duplicate-var-flags
name used on the command line and in the JS API.Changelog
1.77.2
Don't emit deprecation warnings for functions and mixins beginning with __
.
Allow user-defined functions whose names begin with _
and otherwise look
like vendor-prefixed functions with special CSS syntax.
Properly handle the --silence-deprecation
flag.
Handle the --fatal-deprecation
and --future-deprecation
flags for
--interactive
mode.