Add APP theme skeleton

KeyBorad/KeyBorad/APP/AppTheme.cpp

@@ -0,0 +1,6 @@
+#include "APP/AppTheme.h"
+
+App_Theme App_Theme_Default()
+{
+    return App_Theme();
+}

KeyBorad/KeyBorad/APP/AppTheme.h

@@ -0,0 +1,14 @@
+#pragma once
+
+#include <QtCore/QtGlobal>
+
+struct App_Theme
+{
+    quint32 AccentRgb = 0x4CC9F0;
+    quint32 BackgroundRgb = 0x0F172A;
+    quint32 SurfaceRgb = 0x111827;
+    quint32 BorderRgb = 0x334155;
+    quint32 TextRgb = 0xE2E8F0;
+};
+
+App_Theme App_Theme_Default();