Hi Tobias,
By default, the value for symbol palette width and height
should be defined either in pixel(example: 200px) or percentage(example: 100%).
If an palette should be rendered within particular height, you should set the symbol
palette height in pixel. If you set a symbol palette height in percentage, then
the palette will be rendered without scrollbars. So, please set symbol palette
height in pixel to achieve your requirement. Please refer to a sample below in which
we have rendered the palette height in pixel.
Sample: https://stackblitz.com/edit/react-jht376
Regards,
Shyam G