How to set Panel Alpha (transparency) without a style, programmatically?

[hallow mulch]

In tweens, you can use modulate:a, where accessing the alpha property is direct. There must be some public value that the tween acts on, but I have been unable to find it in the docs or editor introspection.

[tropic fox]

panels have a modulate property as well

it's a canvasitem

[hallow mulch]

panel.get_canvas_item().alpha?

The docs on canvas item don't help with identifying the properties imo

The editor doesn't recognize this nor does it have a helpful suggestion

panel.get_canvas_item().modulate = Color(1,1,1,0) ?

no property modulate =/

[tropic fox]

panel.modulate.a

canvas item is not a function

it's a class

in the docs, all the properties are listed at the top of the page