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### Problem Description
I need a way of checking if the user is in https://i.imgur.com/yvZYfsG.png
Windows Dark mode or light mode

### Proposed Solution
systemPreferences.getShellColorType()

### Alternatives Considered
n/a

### Additional Information
Because my app icon is white, I want it to invert if using the Windows 10 light mode.
https://i.imgur.com/dzsLQTs.png
You can barely see it in light mode.

shell/browser/api/atom_api_system_preferences.cc
#include "shell/browser/api/atom_api_system_preferences.h"
#include "native_mate/dictionary.h"
#include "shell/common/native_mate_converters/callback.h"
#include "shell/common/native_mate_converters/value_converter.h"
#include "shell/common/node_includes.h"
#include "ui/gfx/animation/animation.h"
#include "ui/gfx/color_utils.h"
namespace electron {
namespace api {
SystemPreferences::SystemPreferences(v8::Isolate* isolate) {
  Init(isolate);
#if defined(OS_WIN)
  InitializeWindow();
#endif
}
SystemPreferences::~SystemPreferences() {