OpenProcessing Thumbnails are Low Resolution

For the homepage, community, and sketches pages we use the sketch thumbnails generated by OpenProcessing. Unfortunately these images are 400 by 400px and I haven't been able to find anything higher res generated by them. Unfortunately these images don't look great on desktop screens with layout design and occasionally they break the layout. @limzykenneth @Qianqianye do you have any insight on how we might be able to get higher resolution images from them or if they can generate higher ones?

For reference, I'm using the following URL form to get a link to the image for a sketch:

https://openprocessing-usercontent.s3.amazonaws.com/thumbnails/visualThumbnail{SKETCHID}@2x.jpg, where {SKETCHID} is the id of the sketch returned by the API and in the sketch's url itself. I'm actually not sure if this is an official part of their API but its the only way we have to get thumbnails for sketches on OpenProcessing.

Start by checking how thumbnails are used on the homepage, community, and sketches pages, and verify the documented or available OpenProcessing image options using the referenced URL form. Determine whether a supported higher-resolution source exists; done means the affected pages use suitable thumbnails without the reported layout problems, or the external limitation is clearly documented if no better source is available.