Windows update (#49)

src/core/services/overlay-window-config.test.ts

@@ -8,7 +8,31 @@ test('overlay window config explicitly disables renderer sandbox for preload com
     yomitanSession: null,
   });
 
+  assert.equal(options.backgroundColor, '#00000000');
   assert.equal(options.webPreferences?.sandbox, false);
+  assert.equal(options.webPreferences?.backgroundThrottling, false);
+});
+
+test('Windows visible overlay window config does not start as always-on-top', () => {
+  const originalPlatformDescriptor = Object.getOwnPropertyDescriptor(process, 'platform');
+
+  Object.defineProperty(process, 'platform', {
+    configurable: true,
+    value: 'win32',
+  });
+
+  try {
+    const options = buildOverlayWindowOptions('visible', {
+      isDev: false,
+      yomitanSession: null,
+    });
+
+    assert.equal(options.alwaysOnTop, false);
+  } finally {
+    if (originalPlatformDescriptor) {
+      Object.defineProperty(process, 'platform', originalPlatformDescriptor);
+    }
+  }
 });
 
 test('overlay window config uses the provided Yomitan session when available', () => {