@olivier92410 one way to get a lot of flexibility is to use Python graphics with a knime python node or build that into a component.
You could choose from a gallery of matplotlib or seaborn and salt the code.
Most python graphics should work with the new internal Python distribution so you would only have to install the extension and no full python version.
https://docs.knime.com/latest/python_installation_guide/index.html#_python_labs_environment_configuration
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