logback.xml 로그 색상 변경

	<conversionRule conversionWord="clr" converterClass="org.springframework.boot.logging.logback.ColorConverter" />

    <appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
        <encoder>
            <pattern>%clr(%d{yyyyMMdd HH:mm:ss.SSS}){magenta} %clr([%thread]){blue} %clr(%-5level){} %clr([%logger{0}:%line]){cyan} : %msg %n</pattern>
        </encoder>
    </appender>

지원되는 색상의 목록
blue, cyan, faint, green, magenta, red, yellow

https://oingdaddy.tistory.com/257