Make the returning function of thmenv an element function

[Roseleaves]

I want to use the #set rule to change the background color of the axioms, however what I can do is only to change the source code where the axiom function is defined.

what the performance is:

#let axiom = thmbox(
  "axiom", "公理",
  inset: (x: 1.2em, top: 0em)
)

#set axiom(fill: rgb("cc99cc"))

[sahasatvik]

I don't think that typst supports defining custom element functions yet. What I can do is change the format function of the thmbox; when I get that done, you might be able to use something like this:

#let axiom = thmbox(
  "axiom", "公理",
  inset: (x: 1.2em, top: 0em)
)

#let axiom = axiom.with(fill: rgb("cc99cc"))

[sahasatvik]

The update (1.1.1) has gone through; now you can try something like this:

#import "@preview/ctheorems:1.1.1": *
#show: thmrules

#set page(width: 4in, height: auto, margin: 0.5cm)

#let axiom = thmbox(
  "axiom", "公理",
  inset: (x: 1.2em, y: 0.6em),
)

#axiom[
  Things which are equal to the same thing are also equal to one another.
]

#let axiom = axiom.with(fill: rgb("cc99cc"))

#axiom[
  If equals be added to equals, the wholes are equal.
]

// You can also do this now! Set block properties individually.
#axiom(fill: rgb("99cccc"))[
  If equals be subtracted from equals, the remainders are equal.
]

#axiom[
  Things which coincide with one another are equal to one another.
]

[Roseleaves]

okay, that is great. I find myself still using the old 0.1.0 version :(
so I see there is a line below in the source code

      [#metadata(identifier) <meta:thmenvcounter>],

so does that means that the reference is auto-created? then how to use? like #link(<def11>) and #link(<ax42>)?

[sahasatvik]

You can use the usual <label> and @reference syntax; look at this example or the manual.

Btw, we're currently at version 1.1.2.