Click on Layers and choose "Add a layer", and "Provide a layer version ARN" and enter the following ARN. If you don't use aws-lambda-libreoffice npm package, then these steps are roughly what you need ...

NOTE: Go to Tools → Options → LibreOffice → View to enable the theme. This icon theme is taken from LibreOffice core. This repository is used as a backup as well as a source of checks for the most ...