add property backgroundColor

src/cpp/QWebEnginePage/qwebenginepage_wrap.cpp

@@ -16,6 +16,7 @@ Napi::Object QWebEnginePageWrap::init(Napi::Env env, Napi::Object exports) {
         InstanceMethod("webChannel", &QWebEnginePageWrap::webChannel),
        InstanceMethod("runJavaScript", &QWebEnginePageWrap::runJavaScript),
        InstanceMethod("setBackgroundColor", &QWebEnginePageWrap::setBackgroundColor),
+       InstanceMethod("backgroundColor", &QWebEnginePageWrap::backgroundColor),
        COMPONENT_WRAPPED_METHODS_EXPORT_DEFINE(QWebEnginePageWrap)});
   constructor = Napi::Persistent(func);
   exports.Set(CLASSNAME, func);
@@ -79,3 +80,12 @@ Napi::Value QWebEnginePageWrap::setBackgroundColor(const Napi::CallbackInfo& inf
   this->instance->setBackgroundColor(*colorWrap->getInternalInstance());
   return env.Null();
 }
+
+Napi::Value QWebEnginePageWrap::backgroundColor(const Napi::CallbackInfo& info) {
+  Napi::Env env = info.Env();
+  Napi::HandleScope scope(env);
+  QColor color = this->instance->backgroundColor();
+  auto instance = QColorWrap::constructor.New(
+      {Napi::External<QColor>::New(env, new QColor(color))});
+  return instance; 
+}

src/cpp/QWebEnginePage/qwebenginepage_wrap.h

@@ -20,4 +20,5 @@ class QWebEnginePageWrap : public Napi::ObjectWrap<QWebEnginePageWrap> {
   Napi::Value setWebChannel(const Napi::CallbackInfo& info);
   Napi::Value webChannel(const Napi::CallbackInfo& info);
   Napi::Value setBackgroundColor(const Napi::CallbackInfo& info);
+  Napi::Value backgroundColor(const Napi::CallbackInfo& info);
 };

src/demo-transparent.ts

@@ -1,12 +1,5 @@
 import path from "path";
-import {
-  WidgetAttribute,
-  WidgetEventTypes,
-  QPainter,
-  QColor,
-  PenStyle,
-  WindowType,
-} from "@nodegui/nodegui";
+import { WidgetAttribute, WidgetEventTypes, QColor } from "@nodegui/nodegui";
 import { QWebEngineView, QWebChannel } from ".";
 
 const index = "file://" + path.resolve(__dirname, "..", "public/index.html");

src/lib/QWebEnginePage.ts

@@ -32,4 +32,8 @@ export class QWebEnginePage extends Component {
   setBackgroundColor(color: QColor): void {
     this.native.setBackgroundColor(color.native);
   }
+
+  backgroundColor(): QColor {
+    return this.native.backgroundColor()
+  }
 }