Button::image(...)s in a grid or horizontal render with weird sizing

[keriefie]

Trying to make a tool palette in a small window, but the icons render weirdly when placed next to each other, in a grid, as well as in a horizontal. I expect the icons should all be the same size.

The tool palette; the icons in the first column are smaller than the following icons, this also applies to a horizontal element in the context menu. (the icons are blurry consecutively as well which is strange)

fn add_image_button<'a>(ui: &mut Ui, icon_source: ImageSource<'a>, size: f32, rounding: f32) {
    ui.add(image_button(icon_source, size, rounding));
}

fn image_button<'a>(icon_source: ImageSource<'a>, size: f32, rounding: f32) -> Button<'a> {
    Button::image(icon_source).min_size(Vec2::splat(size)).rounding(rounding)
}

let tool_palette_open = enum_get!(self, Tab::CharacterDraw, tool_palette_open);
let window = Window::new("")
    .min_width(32.0)
    .open(tool_palette_open);
window.show(ctx, |ui| {
    let sized_icon_button = |ui: &mut Ui, icon_source: ImageSource| {
        add_image_button(ui, icon_source, 32.0, 2.0)
    };
    Grid::new("tool_palette_grid")
        .min_col_width(32.0)
        .spacing(Vec2::splat(5.0))
        .show(ui, |ui| {
            sized_icon_button(ui, include_image!("../assets/icons/zoom_large.svg"));
            sized_icon_button(ui, include_image!("../assets/icons/zoom_large.svg"));
            sized_icon_button(ui, include_image!("../assets/icons/zoom_large.svg"));
            sized_icon_button(ui, include_image!("../assets/icons/zoom_large.svg"));
            sized_icon_button(ui, include_image!("../assets/icons/zoom_large.svg"));
            sized_icon_button(ui, include_image!("../assets/icons/zoom_large.svg"));
            sized_icon_button(ui, include_image!("../assets/icons/zoom_large.svg"));
            ui.end_row();

            sized_icon_button(ui, include_image!("../assets/icons/select_large.svg"));
            sized_icon_button(ui, include_image!("../assets/icons/marquee_large.svg"));
            ui.end_row();

            sized_icon_button(ui, include_image!("../assets/icons/lasso_large.svg"));
            sized_icon_button(ui, include_image!("../assets/icons/move_large.svg"));
            ui.end_row();

            sized_icon_button(ui, include_image!("../assets/icons/expand_large.svg"));
            sized_icon_button(ui, include_image!("../assets/icons/rotate_large.svg"));
            ui.end_row();

            sized_icon_button(ui, include_image!("../assets/icons/eraser_large.svg"));
            sized_icon_button(ui, include_image!("../assets/icons/spline_large.svg"));
            ui.end_row();

            sized_icon_button(ui, include_image!("../assets/icons/pencil_line_large.svg"));
            sized_icon_button(ui, include_image!("../assets/icons/dot_large.svg"));
            ui.end_row();

            sized_icon_button(ui, include_image!("../assets/icons/cut_large.svg"));
            
            menu_custom_button(
                ui, 
                image_button(include_image!("../assets/icons/shapes_large.svg"), 32.0, 2.0),
                |ui| {
                    ui.horizontal(|ui| {
                        sized_icon_button(ui, include_image!("../assets/icons/square_large.svg"));
                        sized_icon_button(ui, include_image!("../assets/icons/circle_large.svg"));
                    });
                },
            );
        });

});

[keriefie]

Oh apparently they render in three different sizes too?