Thor has several built in visualizations in addition to the default table view. They can all be used by specifying specific variables described below.
The image grid requires only one variable. ?thumbnail should be an image URL invalid image URLs within this variable will be ignored. Note that if you are running Thor over HTTPS images will need to be served over HTTPS as well. The image grid will only render the first 100 images.
The pie chart requires two variables. ?count should be a numeric value. ?label should be a literal.
This SPARQL Editor is Open Source and you can report issues as well as contributing code through Github. You can also contribute to the Query Library by improving or adding new queries through the Query Library repository.