Set default size for parameters example

examples/Parameters/DistrhoPluginInfo.h

@@ -28,5 +28,7 @@
 #define DISTRHO_PLUGIN_WANT_PROGRAMS 1
 #define DISTRHO_UI_FILE_BROWSER      0
 #define DISTRHO_UI_USER_RESIZABLE    1
+#define DISTRHO_UI_DEFAULT_WIDTH     512
+#define DISTRHO_UI_DEFAULT_HEIGHT    512
 
 #endif // DISTRHO_PLUGIN_INFO_H_INCLUDED

examples/Parameters/ExampleUIParameters.cpp

@@ -33,7 +33,7 @@ class ExampleUIParameters : public UI
 public:
     /* constructor */
     ExampleUIParameters()
-        : UI(512, 512)
+        : UI(DISTRHO_UI_DEFAULT_WIDTH, DISTRHO_UI_DEFAULT_HEIGHT)
     {
        /**
           Initialize all our parameters to their defaults.