Hot do I let Cantor output LaTeX (with SageMath backend)?

Cantor is a good front end, but I wonder is there a way to get the output from the back end (in this case, SageMath) to be rendered by TeX?

For Jupyter, you can easily do that with %display latex, or equivalently display(latex(obj)).
However, neither do the job.

By the way, rendering formula in Markdown cell results in a picture with very bad resolution…