Currently it doesn't seem possible to change the color of the border of labels. For instance, reported by @MeyerBender, using ```python sdata_zoomed.pl.render_images(channel=["DAPI"]).pl.render_labels(outline_alpha=1, fill_alpha=0, color="white").pl.show() ``` shows a black border ([code here](https://haraldvohringer.com/spatialproteomics/notebooks/ExampleWorkflowSpatialdata.html)) <img width="534" alt="Image" src="https://github.com/user-attachments/assets/5a871a6a-d243-46ad-9dd7-3f9732301666" /> while having a white border like [here](https://haraldvohringer.com/spatialproteomics/notebooks/ExampleWorkflow.html) would be the desired output <img width="570" alt="Image" src="https://github.com/user-attachments/assets/f53171d3-435e-41df-bb5c-8d94c40669ca" />