See if this fixes issues w other platforms

app.py

@@ -8,6 +8,9 @@ import gzip
 import zlib
 import pyperclip
 import hashlib
+import platform
+
+if platform.system() == "Windows":
     from winmica import EnableMica, BackdropType, is_mica_supported
 
 MAC_SAVE_KEY = (
@@ -168,7 +171,7 @@ class MainWindow(QMainWindow):
         self.setCentralWidget(container)
 
     def apply_mica(self, widget):
-        if is_mica_supported():
+        if platform.system() == "Windows" and is_mica_supported():
             widget.setAttribute(Qt.WidgetAttribute.WA_TranslucentBackground, True)
             hwnd = int(widget.winId())
             EnableMica(hwnd, BackdropType.MICA)