if windows: no supported image backend

Author: o2sh

src/onefetch/image_backends/mod.rs

@@ -22,6 +22,10 @@ pub fn get_best_backend() -> Option<Box<dyn ImageBackend>> {
 }
 
 pub fn check_if_supported(backend_name: &str) -> Result<()> {
+
+    #[cfg(windows)]
+    return Err(format!("{} image backend is not supported", backend_name));
+
     match backend_name {
         "kitty" => {
             if !kitty::KittyBackend::supported() {