Updated to version Jenkins-2.249.2 + AnsiColor-0.7.3 or 0.7.2

And in the pipline step log the color disappeared.

STR:

Make pipeline job:

ansiColor('xterm') {
    stage ("xterm"){
        node ("master") {
            sh """
                echo '\033[34mHello\033[0m \033[33mcolorful\033[0m \033[35mworld!\033[0m'
            """
        }
    }
}

If look to the URL https://jenkins/view/all/job/test_pipeline2/488/console all good:

But if go to Pipeline Steps in URL: https://jenkins/view/all/job/test_pipeline2/488/execution/node/9/log/

Please fix it. Thank you!