How to use the show rule to set the color of all Cetz object?

[tapyu]

I want to set the color of Cetz objects (such as line, circle, content, ...) to red.

The problem is that they aren't an element. I wonder if they share a common element so that a show rule be applied to it can affect all of them.

[jneug]

Dou don't use #show here, but rather the cetz function set-style:

#cetz.canvas({
  import cetz.draw: *

  set-style(
    fill: red,
    stroke: red
  )

  line((0,0), (5,0))
  circle((), radius:1)
})