Build-time icon utilities for uzor apps.
Convert an SVG asset into PNG (single size) or .ico (multi-size Windows icon)
during build.rs. Designed to be called from a build script:
// In build.rs:
fn main() {
uzor_icon::svg_to_png("assets/logo.svg", "icon-32.png", 32).unwrap();
uzor_icon::svg_to_ico("assets/logo.svg", "icon.ico", &[16, 32, 48, 256]).unwrap();
}