File mainwindow_cpp.patch of Package hearts

diff --git a/mainwindow.cpp b/mainwindow.cpp
index 41d9080..384247f 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -2826,7 +2826,7 @@ void MainWindow::check_text_only()
                                            "lightgray", // WOODEN_2
                                            "white",     // WOODEN_3
                                            "black",     // WOODEN_4
-                                           "lightgray", // LEAVES
+                                           "darkred",   // LEAVES
                                            "black"      // MARBLE
                                           };