Custom log file syntax highlightings for Notepad++ by @foreachthing (Dark Theme) & @mmdemirbas (Light Theme)

LogFileDark.udl.xml

<NotepadPlus>
    <UserLang name="LogFile (Dark Theme)" ext="log">
        <Settings>
            <Global caseIgnored="yes" />
            <TreatAsSymbol comment="no" commentLine="no" />
            <Prefix words1="no" words2="no" words3="no" words4="no" />
        </Settings>
        <KeywordLists>
            <Keywords name="Delimiters">[(0])0</Keywords>
            <Keywords name="Folder+"></Keywords>
            <Keywords name="Folder-"></Keywords>
            <Keywords name="Operators">&apos; - ! &quot; # $ % &amp; ( ) * , . / : ; ? @ [ \ ] ^ _ ` { | } ~ + &lt; = &gt;</Keywords>
            <Keywords name="Comment">1 2 0</Keywords>
            <Keywords name="Words1">ERROR</Keywords>
            <Keywords name="Words2">WARN WARNING</Keywords>
            <Keywords name="Words3">DEBUG</Keywords>
            <Keywords name="Words4">INFO</Keywords>
        </KeywordLists>
        <Styles>
		<WordsStyle name="DEFAULT" styleID="11" fgColor="DCDCCC" bgColor="FFFFFF" colorStyle="1" fontName="" fontStyle="0" />
		<WordsStyle name="FOLDEROPEN" styleID="12" fgColor="DCDCCC" bgColor="FFFFFF" colorStyle="1" fontName="" fontStyle="0" />
		<WordsStyle name="FOLDERCLOSE" styleID="13" fgColor="DCDCCC" bgColor="FFFFFF" colorStyle="1" fontName="" fontStyle="0" />
		<WordsStyle name="KEYWORD1" styleID="5" fgColor="FFFFFF" bgColor="FF0000" fontName="" fontStyle="1" />
		<WordsStyle name="KEYWORD2" styleID="6" fgColor="FFFFFF" bgColor="FF8000" fontName="" fontStyle="1" />
		<WordsStyle name="KEYWORD3" styleID="7" fgColor="FFFFFF" bgColor="FF80FF" fontName="" fontStyle="1" />
		<WordsStyle name="KEYWORD4" styleID="8" fgColor="FFFFFF" bgColor="0080FF" fontName="" fontStyle="2" />
		<WordsStyle name="COMMENT" styleID="1" fgColor="DCDCCC" bgColor="FFFFFF" colorStyle="1" fontName="" fontStyle="0" />
		<WordsStyle name="COMMENT LINE" styleID="2" fgColor="DCDCCC" bgColor="FFFFFF" colorStyle="1" fontName="" fontStyle="0" />
		<WordsStyle name="NUMBER" styleID="4" fgColor="DCDCCC" bgColor="FFFFFF" colorStyle="1" fontName="" fontStyle="0" />
		<WordsStyle name="DELIMINER1" styleID="14" fgColor="DCDCCC" bgColor="FFFFFF" colorStyle="1" fontName="" fontStyle="1" />
		<WordsStyle name="DELIMINER2" styleID="15" fgColor="F08C00" bgColor="FFFFFF" colorStyle="1" fontName="" fontStyle="2" />
		<WordsStyle name="DELIMINER3" styleID="16" fgColor="DCDCCC" bgColor="FFFFFF" colorStyle="1" fontName="" fontStyle="0" />
		<WordsStyle name="OPERATOR" styleID="10" fgColor="FF7480" bgColor="FFFFFF" colorStyle="1" fontName="" fontStyle="1" />
	</Styles>
    </UserLang>
</NotepadPlus>

LogFileLight.udl.xml

<NotepadPlus>
    <UserLang name="LogFile (Light Theme)" ext="log">
        <Settings>
            <Global caseIgnored="yes" />
            <TreatAsSymbol comment="no" commentLine="no" />
            <Prefix words1="no" words2="no" words3="no" words4="no" />
        </Settings>
        <KeywordLists>
            <Keywords name="Delimiters">[(0])0</Keywords>
            <Keywords name="Folder+"></Keywords>
            <Keywords name="Folder-"></Keywords>
            <Keywords name="Operators">&apos; - ! &quot; # $ % &amp; ( ) * , . / : ; ? @ [ \ ] ^ _ ` { | } ~ + &lt; = &gt;</Keywords>
            <Keywords name="Comment">1 2 0</Keywords>
            <Keywords name="Words1">ERROR</Keywords>
            <Keywords name="Words2">WARN WARNING</Keywords>
            <Keywords name="Words3">DEBUG</Keywords>
            <Keywords name="Words4">INFO</Keywords>
        </KeywordLists>
        <Styles>
            <WordsStyle name="DEFAULT" styleID="11" fgColor="000000" bgColor="FFFFFF" fontName="" fontStyle="0" />
            <WordsStyle name="FOLDEROPEN" styleID="12" fgColor="000000" bgColor="FFFFFF" fontName="" fontStyle="0" />
            <WordsStyle name="FOLDERCLOSE" styleID="13" fgColor="000000" bgColor="FFFFFF" fontName="" fontStyle="0" />
            <WordsStyle name="KEYWORD1" styleID="5" fgColor="FFFFFF" bgColor="FF0000" fontName="" fontStyle="1" />
            <WordsStyle name="KEYWORD2" styleID="6" fgColor="FFFFFF" bgColor="FF8000" fontName="" fontStyle="1" />
            <WordsStyle name="KEYWORD3" styleID="7" fgColor="FFFFFF" bgColor="FF80FF" fontName="" fontStyle="1" />
            <WordsStyle name="KEYWORD4" styleID="8" fgColor="FFFFFF" bgColor="0080FF" fontName="" fontStyle="0" />
            <WordsStyle name="COMMENT" styleID="1" fgColor="000000" bgColor="FFFFFF" fontName="" fontStyle="0" />
            <WordsStyle name="COMMENT LINE" styleID="2" fgColor="000000" bgColor="FFFFFF" fontName="" fontStyle="0" />
            <WordsStyle name="NUMBER" styleID="4" fgColor="000000" bgColor="FFFFFF" fontName="" fontStyle="0" />
            <WordsStyle name="OPERATOR" styleID="10" fgColor="FF0080" bgColor="FFFFFF" fontName="" fontStyle="1" />
            <WordsStyle name="DELIMINER1" styleID="14" fgColor="000000" bgColor="FFFFBF" fontName="" fontStyle="1" />
            <WordsStyle name="DELIMINER2" styleID="15" fgColor="800000" bgColor="FFFFFF" fontName="" fontStyle="2" />
            <WordsStyle name="DELIMINER3" styleID="16" fgColor="000000" bgColor="FFFFFF" fontName="" fontStyle="0" />
        </Styles>
    </UserLang>
</NotepadPlus>

Thanks for putting light and dark together for easy switching.