Icon "image-missing" does not exist

[nikableh]

I can use icon_names::IMAGE, but not icon_names::IMAGE_MISSING.

System:

OS: Ubuntu 22.04.5 LTS x86_64
Host: CMP NS685U_4 (1.0)
Kernel: Linux 6.8.0-51-generic
Shell: bash 5.1.16
Display (BOE0747): 1920x1080 @ 60 Hz in 16" [Built-in]
DE: GNOME 42.9
WM: Mutter (X11)
WM Theme: Adwaita
Theme: Adwaita [GTK2/3/4]
Icons: Adwaita [GTK2/3/4]
Font: Cantarell (11pt) [GTK2/3/4]
Cursor: Adwaita (24px)
Terminal: GNOME Terminal 3.44.0
Terminal Font: Source Code Pro (18pt)
Locale: en_US.UTF-8

main.rs:

// main.rs
use gtk::prelude::*;
use icon_names::*;
use relm4::prelude::*;

#[derive(Default)]
struct AppModel {}

#[relm4::component]
impl SimpleComponent for AppModel {
    type Input = ();
    type Output = ();
    type Init = ();

    view! {
        gtk::Window {
            set_title: Some("Simple app"),
            set_default_width: 500,
            set_default_height: 250,
            set_size_request: (100, 100),

            gtk::Label {
                set_label: &format!("Hello, World!"),
            },

            adw::StatusPage {
                set_icon_name: Some(IMAGE_MISSING),
                set_description: Some("aboba"),
            },
        }
    }

    fn init(
        _init: Self::Init,
        root: Self::Root,
        _sender: ComponentSender<Self>,
    ) -> ComponentParts<Self> {
        let model = AppModel::default();
        let widgets = view_output!();

        ComponentParts { model, widgets }
    }
}

mod icon_names {
    include!(concat!(env!("OUT_DIR"), "/icon_names.rs"));
}

fn main() {
    relm4_icons::initialize_icons(icon_names::GRESOURCE_BYTES, icon_names::RESOURCE_PREFIX);

    let app = RelmApp::new("com.github.aboba.aboba");
    app.run::<AppModel>(());
}

build.rs:

// build.rs
fn main() {
    relm4_icons_build::bundle_icons(
        "icon_names.rs",
        Some("com.github.synalice.aboba.aboba"),
        None::<&str>,
        None::<&str>,
        ["image-missing"],
    );
}

[pieterdd]

I have a similar problem with sidebar-left and some other icons:

Icon with name `sidebar-left` does not exist

According to https://github.com/Relm4/icons/blob/main/icons32.md, both image-missing and sidebar-left should be available. Did you end up finding a solution to your problem, or is this perhaps an actual bug?