🔧 API Reference📚 Generated API DocsUtilitiesREADMEREADMEREADMEOn this pageREADMEFitFileViewer - API Documentation v30.0.1 FitFileViewer - API Documentation / utils/ui/controls/addFitOverlayButtonState utils/ui/controls/addFitOverlayButtonState Functions registerAddFitOverlayButtonAvailabilityUpdater resetAddFitOverlayButtonStateForTests