case absPercent = "abs-percent"

case bogusCombinators = "bogus-combinators"

case callString = "call-string"

case color4Api = "color-4-api"

case colorFunctions = "color-functions"

case colorModuleCompat = "color-module-compat"

case cssFunctionMixin = "css-function-mixin"

case duplicateVarFlags = "duplicate-var-flags"

case elseif = "elseif"

case featureExists = "feature-exists"

case fsImporterCwd = "fs-importer-cwd"

case functionUnits = "function-units"

case globalBuiltin = "global-builtin"

case `import` = "import"

case mixedDecls = "mixed-decls"

case mozDocument = "moz-document"

case newGlobal = "new-global"

case nullAlpha = "null-alpha"

case relativeCanonical = "relative-canonical"

case slashDiv = "slash-div"

case strictUnary = "strict-unary"

case userAuthored = "user-authored"