Disable color swatches for mask utilities

This is a performance optimization right now because an additional 5k utilities makes things take a really long time

Author: thecrypticace

packages/tailwindcss-language-service/src/util/color.ts

@@ -191,9 +191,13 @@ function getColorFromRoot(state: State, css: postcss.Root): culori.Color | Keywo
 let isNegative = /^-/
 let isNumericUtility =
   /^-?((min-|max-)?[wh]|z|start|order|opacity|rounded|row|col|size|basis|end|duration|ease|font|top|left|bottom|right|inset|leading|cursor|(space|scale|skew|rotate)-[xyz]|gap(-[xy])?|(scroll-)?[pm][trblxyse]?)-/
+let isMaskUtility = /^-?mask-/
 
 function isLikelyColorless(className: string) {
   if (isNegative.test(className)) return true
+  // TODO: This is **not** correct but is intentional because there are 5k mask utilities and a LOT of them are colors
+  // This causes a massive slowdown when building the design system
+  if (isMaskUtility.test(className)) return true
   if (isNumericUtility.test(className)) return true
   return false
 }