- 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
atom::TaskbarHost::ThumbarButton* out) {
    mate::Dictionary dict;
    if (!ConvertFromV8(isolate, val, &dict))
      return false;
    dict.Get("click", &(out->clicked_callback));
    dict.Get("tooltip", &(out->tooltip));
    dict.Get("flags", &out->flags);
    return dict.Get("icon", &(out->icon));
  }
};
}  
#endif
namespace atom {
namespace api {
namespace {
void OnCapturePageDone(