feat(css): Add missing css color() function (#858)

feat(css): Add missing css `color()` function

Co-authored-by: Brian Smith <brian@smith.berlin>

css/functions.json

@@ -119,6 +119,14 @@
     "status": "standard",
     "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/clamp"
   },
+  "color()": {
+    "syntax": "color( [from <color>]? <colorspace-params> [ / [ <alpha-value> | none ] ]? )",
+    "groups": [
+      "CSS Color"
+    ],
+    "status": "standard",
+    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/color_value/color"
+  },
   "conic-gradient()": {
     "syntax": "conic-gradient( [ from <angle> ]? [ at <position> ]?, <angular-color-stop-list> )",
     "groups": [

css/syntaxes.json

@@ -146,6 +146,9 @@
   "color": {
     "syntax": "<rgb()> | <rgba()> | <hsl()> | <hsla()> | <hwb()> | <lab()> | <lch()> | <oklab()> | <oklch()> | <color()> | <hex-color> | <named-color> | <system-color> | <deprecated-system-color> | currentcolor | transparent"
   },
+  "color()": {
+    "syntax": "color( [from <color>]? <colorspace-params> [ / [ <alpha-value> | none ] ]? )"
+  },
   "color-interpolation-method": {
     "syntax": "in [ <rectangular-color-space> | <polar-color-space> <hue-interpolation-method>? ]"
   },
@@ -161,6 +164,9 @@
   "color-stop-list": {
     "syntax": "[ <linear-color-stop> [, <linear-color-hint>]? ]# , <linear-color-stop>"
   },
+  "colorspace-params": {
+    "syntax": "[<custom-params> | <predefined-rgb-params> | <xyz-params>]"
+  },
   "combinator": {
     "syntax": "'>' | '+' | '~' | [ '||' ]"
   },
@@ -239,6 +245,9 @@
   "cubic-bezier-timing-function": {
     "syntax": "ease | ease-in | ease-out | ease-in-out | cubic-bezier(<number [0,1]>, <number>, <number [0,1]>, <number>)"
   },
+  "custom-params": {
+    "syntax": "<dashed-ident> [ <number> | <percentage> | none ]+"
+  },
   "dasharray": {
     "syntax": "[ [ <length-percentage> | <number> ]+ ]#"
   },
@@ -674,6 +683,12 @@
   "pow()": {
     "syntax": "pow( <calc-sum>, <calc-sum> )"
   },
+  "predefined-rgb": {
+    "syntax": "srgb | srgb-linear | display-p3 | a98-rgb | prophoto-rgb | rec2020"
+  },
+  "predefined-rgb-params": {
+    "syntax": "<predefined-rgb> [ <number> | <percentage> | none ]{3}"
+  },
   "pseudo-class-selector": {
     "syntax": "':' <ident-token> | ':' <function-token> <any-value> ')'"
   },
@@ -976,5 +991,11 @@
   },
   "wq-name": {
     "syntax": "<ns-prefix>? <ident-token>"
+  },
+  "xyz": {
+    "syntax": "xyz | xyz-d50 | xyz-d65"
+  },
+  "xyz-params": {
+    "syntax": "<xyz> [ <number> | <percentage> | none ]{3}"
   }
 }