`icon=false` is not working in Typst

[cderv]

---
title: Typst callout testing
format: typst
---

::: {.callout-note icon=false}
## Note

content
:::

[cderv]

I think we're not supporting appearance either: https://quarto.org/docs/authoring/callouts.html#appearance

looking at

quarto-cli/src/resources/filters/customnodes/callout.lua

Lines 230 to 312 in 2720028

	_quarto.ast.add_renderer("Callout", function(_)
	return _quarto.format.isTypstOutput()
	end, function(callout)
	ensure_typst_font_awesome()
	local callout_theme_color_map = {
	note = "primary",
	warning = "warning",
	important = "danger",
	tip = "success",
	caution = nil -- ?
	}
	local attrs = _quarto.modules.callouts.callout_attrs[callout.type]
	local background_color, icon_color, icon
	if attrs == nil then
	background_color = "white"
	icon_color = "black"
	icon = "fa-info"
	else
	background_color = "rgb(\"#" .. attrs.background_color .. "\")";
	icon_color = "rgb(\"#" .. attrs.color .. "\")";
	icon = attrs.fa_icon_typst
	end
	local brand = param("brand")
	local brandMode = param('brand-mode') or 'light'
	brand = brand and brand[brandMode]
	body_background_color = "white"
	if brand then
	local color = brand.processedData and brand.processedData.color
	if color then
	if callout_theme_color_map[callout.type] and
	color[callout_theme_color_map[callout.type]] then
	background_color = "brand-color-background." .. callout_theme_color_map[callout.type]
	icon_color = "brand-color." .. callout_theme_color_map[callout.type]
	elseif color.background then
	local brandPercent = 15
	if brandMode == 'dark' then
	brandPercent = 50
	end
	local bkPercent = 100 - brandPercent
	background_color = 'color.mix((' .. icon_color .. ', ' .. brandPercent .. '%), (brand-color.background, ' .. bkPercent .. '%))'
	end
	if color.background then
	body_background_color = "brand-color.background"
	end
	end
	end
	if callout.attr.identifier == "" then
	return _quarto.format.typst.function_call("callout", {
	{ "body", _quarto.format.typst.as_typst_content(callout.content) },
	{ "title", _quarto.format.typst.as_typst_content(
	(not quarto.utils.is_empty_node(callout.title) and callout.title) or
	pandoc.Plain(_quarto.modules.callouts.displayName(callout.type))
	)},
	{ "background_color", pandoc.RawInline("typst", background_color) },
	{ "icon_color", pandoc.RawInline("typst", icon_color) },
	{ "icon", pandoc.RawInline("typst", "" .. icon .. "()")},
	{ "body_background_color", pandoc.RawInline("typst", body_background_color)}
	})
	end
	local typst_callout = _quarto.format.typst.function_call("callout", {
	{ "body", _quarto.format.typst.as_typst_content(callout.content) },
	{ "title", _quarto.format.typst.as_typst_content(callout.title, "inlines")
	},
	{ "background_color", pandoc.RawInline("typst", background_color) },
	{ "icon_color", pandoc.RawInline("typst", icon_color) },
	{ "icon", pandoc.RawInline("typst", "" .. icon .. "()")},
	{ "body_background_color", pandoc.RawInline("typst", body_background_color)}
	})
	local category = crossref.categories.by_ref_type[refType(callout.attr.identifier)]
	return make_typst_figure {
	content = typst_callout,
	caption_location = "top",
	caption = pandoc.Plain(pandoc.Str("")),
	kind = "quarto-callout-" .. _quarto.modules.callouts.displayName(callout.type),
	supplement = param("crossref-" .. callout.type .. "-prefix") or category.name,
	numbering = "1",
	identifier = callout.attr.identifier
	}
	end)