feat: user uploaded icons can use templates, provided they are monochrome icons fixer #2213

src-tauri/src/utils/help.rs

@@ -103,6 +103,19 @@ pub fn open_file(_: tauri::AppHandle, path: PathBuf) -> Result<()> {
     Ok(())
 }
 
+// 添加新的函数来处理字节数据
+pub fn is_monochrome_image_from_bytes(data: &[u8]) -> anyhow::Result<bool> {
+    let img = image::load_from_memory(data)?;
+    let rgb_img = img.to_rgb8();
+
+    for pixel in rgb_img.pixels() {
+        if pixel[0] != pixel[1] || pixel[1] != pixel[2] {
+            return Ok(false);
+        }
+    }
+    Ok(true)
+}
+
 #[cfg(target_os = "linux")]
 pub fn linux_elevator() -> String {
     use std::process::Command;