See if this fixes issues w other platforms

app.py

@@ -9,6 +9,7 @@ import zlib
 import pyperclip
 import hashlib
 from winmica import EnableMica, BackdropType, is_mica_supported
+import platform
 
 MAC_SAVE_KEY = (
     b"\x69\x70\x75\x39\x54\x55\x76\x35\x34\x79\x76\x5d\x69\x73\x46\x4d"
@@ -168,7 +169,7 @@ 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)