Please apply changes only to the LESS-files and convert them to CSS.
If external components are added or updated, make sure the copyright notices are complete. Check the debian/copyright file, which maps files to licenses and the LICENSES directory where all licenses used by IntelMQ Manager must be stored.
Please see the developer guide of IntelMQ for a complete description and workflow: https://github.com/certtools/intelmq/blob/master/docs/Developers-Guide.md#code-submission-rules