I’m thinking of moving from Beamer to Touying for my lecture slides, but I first want to check that I can do everything I need. The first thing I’ve not figured out is how to include a custom image as a slide background – any idea? Would I need to make a custom theme with a custom slide type?
Hey,
you can just use the background argument in a set page() rule, like this :
#set page(background: image("images/biere.jpg"))
Placing this at the beginning of your document will place the image in the background for all your slides (in my case, two glasses of beer).
Cheers !
Hey @baptiste! I’ve moved your post to the Questions category, as it is a question. I’ve also changed your question post’s title to better fit our guidelines: How to post in the Questions category
For future posts, make sure your title is a question you’d ask to a friend about Typst. 
Thanks, but my question is more to use an image on one slide in particular, where I don’t think this works?
I’m guessing I would have to create a custom slide type like so:
#let image-slide(body, background: none) = touying-slide-wrapper(self => {
self = utils.merge-dicts(
self,
config-page(
background: background,
margin: 2em,
),
)
set text(fill: self.colors.neutral-lightest, size: 2em)
set image(width: 100%,height: auto)
touying-slide(self: self, align(horizon + center, body))
})
and then call it with
#image-slide(background:image("bkg.jpg"))[
#place[Focus on it!]
]
1 Like
Hi @baptiste were you able to solve your complete problem or is there anything left? If the issue is solved, please mark your own reply as the answer using the 
button, so that it’s easier to find. Thanks!
It works I guess, but I was kind of hoping for a canonical answer, as this seems a very basic question about slides, and I’ve used Touying for just a few minutes in total.