TYPO3 / TYPO3.CMS

        $moduleConfiguration = $GLOBALS['TBE_MODULES']['_configuration'][$moduleSignature];

        // Register the icon and move it too "iconIdentifier"

        if (!empty($moduleConfiguration['icon'])) {

            $iconRegistry = GeneralUtility::makeInstance(IconRegistry::class);

            $iconIdentifier = 'module-' . $moduleSignature;

            $iconProvider = $iconRegistry->detectIconProvider($moduleConfiguration['icon']);

            $iconRegistry->registerIcon(

                $iconIdentifier,

                $iconProvider,

                [ 'source' => GeneralUtility::getFileAbsFileName($moduleConfiguration['icon']) ]

            );

            $moduleConfiguration['iconIdentifier'] = $iconIdentifier;

            unset($moduleConfiguration['icon']);

        }

        return $moduleConfiguration;

    }

        // add additional configuration

        $fullModuleSignature = $main . ($sub ? '_' . $sub : '');

        if (is_array($moduleConfiguration) && !empty($moduleConfiguration)) {

            if (!empty($moduleConfiguration['icon'])) {

                $iconRegistry = GeneralUtility::makeInstance(IconRegistry::class);

                $iconIdentifier = 'module-' . $fullModuleSignature;

                $iconProvider = $iconRegistry->detectIconProvider($moduleConfiguration['icon']);

                $iconRegistry->registerIcon(

                    $iconIdentifier,

                    $iconProvider,

                    [ 'source' => GeneralUtility::getFileAbsFileName($moduleConfiguration['icon']) ]

                );

                $moduleConfiguration['iconIdentifier'] = $iconIdentifier;

                unset($moduleConfiguration['icon']);

            }

            $GLOBALS['TBE_MODULES']['_configuration'][$fullModuleSignature] = $moduleConfiguration;

        }