Regression: "An unknown error occurred during the conversion. This could indicate a bug in svg2pdf."

Hi, svg2pdf (and typst) crash on one of my file, it is a svg file created using `pdf2svg` from a graphio graph exported to pdf: ```error: failed to convert SVG to PDF: An unknown error occurred during the conversion. This could indicate a bug in svg2pdf``` A quick git bisect seem to show commit v0.12.0~7 as the culprit, more precisely this hunk: ```diff @@ -13,18 +15,23 @@ pub fn render( content: &mut Content, ctx: &mut Context, rc: &mut ResourceContainer, -) -> Option<()> { +) -> Result<()> { // TODO: Add a check so that huge regions don't crash svg2pdf (see huge-region.svg test case) - let layer_bbox = group.layer_bounding_box().transform(group.transform())?; + let layer_bbox = group + .layer_bounding_box() + .transform(group.transform()) + .ok_or(UnknownError)?; let pixmap_size = Size::from_wh( layer_bbox.width() * ctx.options.raster_scale, layer_bbox.height() * ctx.options.raster_scale, - )?; + ) + .ok_or(UnknownError)?; let mut pixmap = tiny_skia::Pixmap::new( pixmap_size.width().round() as u32, pixmap_size.height().round() as u32, - )?; + ) + .ok_or(UnknownError)?; let initial_transform = Transform::from_scale(ctx.options.raster_scale, ctx.options.raster_scale) ``` I am not familiar with Rust nor the project so I am probably missing something, but the error seem to come from `tiny_skia::Pixmap::new` that return an error on 0. Here are the smallest file that i could create that reproduce the error : [minimal.pdf](https://github.com/user-attachments/files/20646436/minimal.pdf)  the original file : [virtual_memory.pdf](https://github.com/user-attachments/files/20646437/virtual_memory.pdf)  Thank you for your work !