basic theme changing

shared/global.cpp

@@ -84,6 +84,7 @@ Shared::Global::Global():
         tr("Squawk is going to query you for the password on every start of the program", "AccountPasswordDescription"),
         tr("Your password is going to be stored in KDE wallet storage (KWallet). You're going to be queried for permissions", "AccountPasswordDescription")
     }),
+    defaultSystemStyle(QApplication::style()->objectName()),
     pluginSupport({
         {"KWallet", false},
         {"openFileManagerWindowJob", false}

shared/global.h

@@ -27,7 +27,8 @@
 #include <set>
 #include <deque>
 
-#include <QCoreApplication>
+#include <QApplication>
+#include <QStyle>
 #include <QDebug>
 #include <QMimeType>
 #include <QMimeDatabase>
@@ -84,6 +85,8 @@ namespace Shared {
         const std::deque<QString> accountPassword;
         
         const std::deque<QString> accountPasswordDescription;
+
+        const QString defaultSystemStyle;
         
         static bool supported(const QString& pluginName);
         static void setSupported(const QString& pluginName, bool support);