UI style corrections

See commit messages

GUI/Application/ApplicationSettings.cpp

@@ -23,7 +23,7 @@
 namespace {
 
 const QString S_CREATE_NEW_PROJECT_ON_STARTUP = "CreateNewProjectOnStartup";
-const QString S_STYLE = "Style";
+const QString S_STYLE = "UiStyle";
 const QString S_SIZE = "Size";
 const QString S_POS = "Pos";
 const QString S_DEFAULT_FUNCTIONALITIES = "DefaultFunctionalities";
@@ -62,7 +62,7 @@ void ApplicationSettings::setCreateNewProjectOnStartup(bool b)
 
 ApplicationSettings::Style ApplicationSettings::styleToUse() const
 {
-    return static_cast<Style>(QSettings().value(S_STYLE, static_cast<int>(Style::native)).toInt());
+    return static_cast<Style>(QSettings().value(S_STYLE, static_cast<int>(Style::light)).toInt());
 }
 
 void ApplicationSettings::setStyleToUse(Style style)