void call(String stepName, Map styleMap = [:]) {
    Map defaultStyleMap = [
        boxColor: 'green',
        textColor: 'white',
        boxStyle: 'default'
    ]

    runStyleMap = defaultStyleMap + styleMap

    Map colors = [
        black:   '\u001b[30m',
        red:     '\u001b[31m',
        green:   '\u001b[32m',
        yellow:  '\u001b[33m',
        blue:    '\u001b[34m',
        magenta: '\u001b[35m',
        cyan:    '\u001b[36m',
        white:   '\u001b[40;37m',
        reset:   '\u001b[0m',
    ]

    Map boxStyles = [
        default: [
            tr: '╔',
            tl: '╗',
            sd: '║',
            vr: '═',
            br: '╚',
            bl: '╜'
        ],
        plain: [
            tr: '+',
            tl: '+',
            sd: '|',
            vr: '-',
            br: '+',
            bl: '+'
        ]
    ]

    String textColor = runStyleMap['textColor']
    String boxColor = runStyleMap['boxColor']

    Map style = boxStyles[runStyleMap['boxStyle']]

    stepBanner = style['sd'] + "   ${colors[textColor]}$stepName${colors['reset']}${colors[boxColor]}   " + style['sd']
    bannerWidth = stepName.length() + 6

    top = style['tr'] + (style['vr'] * bannerWidth) + style['tl']
    bottom = style['br'] + (style['vr'] * bannerWidth) + style['bl']
    ansiColor('css') {
        echo "${colors[boxColor]}$top\n$stepBanner\n$bottom${colors['reset']}"
    }
}

// ═ ║ ╒ ╓ ╔ ╕ ╖ ╗ ╘ ╙ ╚ ╛ ╜ ╝ ╞ ╟ ╠ ╡ ╢ ╣ ╤ ╥ ╦ ╧ ╨ ╩ ╪ ╫ ╬