- Electron version: 1.1.2 arch=ia32
- Operating system: Windows 7x64

Electron is using the largest icon available in the .ico file for the windows bar.  I set the icon in my main window with `createWindow('main', { ...icon: icon_path })`

You can reproduce this with an icon that displays the size: (click 'test icon with several images' to download)
https://bugzilla.gnome.org/show_bug.cgi?id=551026

here is a screenshot of the wrong icon being used (should be 32x icon):

![wrong-icon](https://cloud.githubusercontent.com/assets/1128302/15620020/cce93d12-2425-11e6-8af4-ce6330aed1c9.png)

atom/browser/api/atom_api_window.cc
return ContainsKey(messages_callback_map_, message);
}
void Window::UnhookAllWindowMessages() {
  messages_callback_map_.clear();
}
#endif
#if defined(OS_MACOSX)
void Window::ShowDefinitionForSelection() {
  window_->ShowDefinitionForSelection();
}
#endif
#if defined(TOOLKIT_VIEWS)
void Window::SetIcon(mate::Handle<NativeImage> icon) {
#if defined(OS_WIN)
  static_cast<NativeWindowViews*>(window_.get())->SetIcon(
      icon->GetHICON(GetSystemMetrics(SM_CXSMICON)), icon->GetHICON(256));
#elif defined(USE_X11)
  static_cast<NativeWindowViews*>(window_.get())->SetIcon(
      icon->image().AsImageSkia());
#endif
}
#endif
void Window::SetAspectRatio(double aspect_ratio, mate::Arguments* args) {
  gfx::Size extra_size;
  args->GetNext(&extra_size);
  window_->SetAspectRatio(aspect_ratio, extra_size);
}
v8::Local<v8::Value> Window::GetNativeWindowHandle() {