Here's what I gather about colors in various editors:

libmoo got highlighting styles and colors from kde text editor, Kate.
Apparently it's different from any other text editor out there.

gvim:

    "Normal" - "Normal"
        Normal vimUserFunc
    "Comment" - "Comment"
        Comment vimComment vimMtchComment vimLineComment perlComment perlDATA perlPOD
            vimScriptDelim rubyComment rubyDocumentation rubyData pythonComment tclComment
    "Constant" - maps to kde "Decimal", "BaseN", "Float", "Char", "String"
        Constant String Character Number Boolean Float vimNumber vimMark vimString vimSetString
            vimCommentString vimPatSepZone vimNotPatSep vimStringCont vimSubstTwoBS vimMarkNumber
            vimPlainMark vimAddress vimSynRegPat vimSynPatRange vimInsert vimSynNotPatRange
            vimHiGuiRgb perlFloat perlNumber perlString perlQQ perlVarSimpleMemberName perlMatch
            perlSubstitutionSQ perlSubstitutionDQ perlSubstitutionSlash perlSubstitutionHash
            perlSubstitutionBracket perlSubstitutionCurly perlSubstitutionPling perlTranslationSlash
            perlTranslationHash perlTranslationBracket perlTranslationCurly perlStringStartEnd
            perlHereDoc perlFormatField perlShellCommand perlStringUnexpanded perlCharacter rubyNumber
            rubyString rubyBoolean pythonString pythonRawString tclString tclNumber
    "Special" - ???
        Special Tag SpecialChar Delimiter SpecialComment Debug vimRegister vimCmplxRepeat
            vimNotation vimCtrlChar vimContinue vimFuncSID vimPatSep vimPatSepErr vimSubstSubstr
            vimSubstDelim vimSubstFlags vimPlainRegister vimMapModKey vimBracket vimMapMod vimMenuMod
            vimGroupSpecial vimSep perlSpecial perlSpecialAscii perlSpecialDollar perlSpecialString
            perlSpecialStringU perlSpecialMatch perlSpecialBEOM rubyExprSubst rubyStringDelimit
            rubyDataDirective pythonEscape tcltkSwitch tcltkWidgetSwitch tcltkPackConfSwitch
            tcltkNamespaceSwitch tcltkMaths tcltkPackSwitch tcltkStringSwitch tcltkArraySwitch
            tcltkLsortSwitch tclSpecial vimSynOption vimSynContains vimSynKeyContainedin
            vimSynNextgroup vimGroupAdd vimGroupRem vimSynKeyOpt vimSynMtchOpt vimSynRegOpt
            vimSynMtchGrp
    "Identifier" - "Function", ??? - I should have some 'Variable'
        Identifier Function vimFuncName vimSpecFile vimFuncVar vimSpecFileMod perlFunction
            perlFunctionPrototype perlIdentifier perlVarPlain perlVarNotInMatches perlVarSlash
            perlVarSimpleMember perlMethod perlFunctionName perlFiledescRead perlFiledescStatement
            perlFormatName rubyFunction rubyIdentifier rubyPredefinedIdentifier rubyConstant
            rubyClassVariable rubyInstanceVariable rubyGlobalVariable rubySymbol rubyIterator
            rubyPredefinedVariable rubyPredefinedConstant pythonFunction tclVarRef tcltkPackConfColor
            vimKeyCode
    "Statement" - "Keyword", ???
        Statement Conditional Repeat Label Operator Keyword Exception vimCommand vimAutoCmd vimLet
            vimMap vimSyntax vimBehave vimBehaveModel vimFTCmd vimOper vimSubst vimAugroupKey
            vimFuncKey vimHighlight vimUserCommand vimSubst1 vimSetSep vimEchoHL vimMapBang
            perlConditional perlRepeat perlOperator perlLabel perlStatement perlList perlMisc
            perlStatementStorage perlStatementControl perlStatementScalar perlStatementRegexp
            perlStatementNumeric perlStatementList perlStatementHash perlStatementIOfunc
            perlStatementFiledesc perlStatementVector perlStatementFiles perlStatementFlow
            perlStatementInclude perlStatementScope perlStatementProc perlStatementSocket
            perlStatementIPC perlStatementNetwork perlStatementPword perlStatementTime
            perlStatementMisc perlStatementNew perlMatchStartEnd perlStatementPackage perlStatementSub
            rubyControl rubyKeyword rubyException rubyBeginEnd pythonStatement pythonRepeat
            pythonConditional pythonOperator tclStatement tclLabel tclConditional tclRepeat
            tcltkCommandColor vimAuHighlight vimAutoSet vimCondHL vimElseif vimNotFunc vimKeyword
            vimStatement
    "PreProc" - "Preprocessor"
        PreProc Include Define Macro PreCondit vimOption vimUserAttrbKey vimEnvvar vimSetMod
            vimMenuName vimMenuNameMore vimHiAttrib vimFgBgAttrib vimCommentTitle perlControl
            perlSharpBang perlInclude rubyDefine rubyInclude rubySharpBang pythonPreCondit
            vimAutoCmdOpt vimHLMod
    "Type" - "DataType"
        Type StorageClass Structure Typedef vimAutoEvent vimGroup vimHLGroup vimPattern
            vimEchoHLNone vimSynCase vimSynReg vimSyncC vimSyncKey vimSyncNone vimHiTerm vimHiCTerm
            vimHiStartStop vimHiCtermFgBg vimHiGui vimHiGuiFont vimHiGuiFgBg perlType perlStorageClass
            perlPackageRef perlPackageDecl perlFunctionPRef rubyClassOrModule tcltkWidgetColor
            vimSpecial vimUserAttrb vimUserAttrbCmplt vimSynType vimFTOption
    "Error" - "Error"
        Error vimOperError vimUserCmdError vimElseIfErr vimSynError vimSyncError perlElseIfError
            perlNotEmptyLine perlBrackets tclError vimError vimKeyCodeError vimErrSetting
            vimBehaveError vimFTError vimFunctionError vimFunc vimSubstFlagErr vimCollClassErr
            vimMapModErr vimSynCaseError vimHiAttribList vimHiCtermError vimHiKeyError
    "Todo" - "Alert"
        Todo vimTodo perlTodo rubyTodo pythonTodo tclTodo