Frontend User Group 

The FrontendUserGroup trigger is used to show the indicators in the TYPO3 Frontend for specific frontend user groups.

ext_localconf.php 
\KonradMichalik\Typo3EnvironmentIndicator\Configuration\Handler::addIndicator(
    triggers: [
        new \KonradMichalik\Typo3EnvironmentIndicator\Configuration\Trigger\FrontendUserGroup(1,2)
    ],
    indicators: [
        new \KonradMichalik\Typo3EnvironmentIndicator\Configuration\Indicator\Backend\Topbar([
            'color' => '#00ACC1',
        ]),
    ]
);
Copied!

The configuration supports multiple group IDs, which are separated by a comma.