You should check out the "advanced demo", it shows the tool actually does support a lot of the items you've mentioned (like background images, code, latex, and

You should check out the "advanced demo", it shows the tool actually does support a lot of the items you've mentioned (like background images, code, latex, and loading markdown from a URL): https://mark.show/https://mark.show/demo.md# https://mark.show/https://mark.show/demo.md#