How can I change the size of the previewThumbnails render window?

[regiside]

Is there a way to adjust the size of the thumbnail when a user scrubs the timeline? My site has rather long videos so I'm keeping the thumbnail size closer to youtube's 160px width thumbnails. But Plyr is rendering the thumbnail window at about 200px which is making them look low quality. It looks like the width and height are applied via javascript to the plyr__preview-thumb__image-container. Would love to be able to adjust the max size of plyr__preview-thumb__image-container somehow.