Adapt target icon size.

src/plugins/coreplugin/coreconstants.h

@@ -227,7 +227,7 @@ const char * const SETTINGS_CATEGORY_CORE = "A.Core";
 const char * const SETTINGS_TR_CATEGORY_CORE = QT_TRANSLATE_NOOP("Core", "Environment");
 const char * const SETTINGS_ID_ENVIRONMENT = "A.General";
 
-const int TARGET_ICON_SIZE = 24;
+const int TARGET_ICON_SIZE = 32;
 
 } // namespace Constants
 } // namespace Core