Fix a bug where linestyle is not propagated to contour
I encountered this issue in a triangle plot.
Maintenance will be performed on git.ligo.org, containers.ligo.org, and docs.ligo.org on Tuesday 7 Mayl 2024 starting at approximately 9am PDT. It is expected to take around twenty minutes and there will be several periods of downtime throughout the maintenance. Please address any comments, concerns, or questions to the helpdesk.
I encountered this issue in a triangle plot.