diff --git a/callback.c b/callback.c
index 66f3503..07b6f24 100644
--- a/callback.c
+++ b/callback.c
@@ -2,7 +2,6 @@
 #include <gtk-4.0/gtk/gtk.h>
 
 #include "tree.h"
-#include "display.h"
 #include "contain.h"
 #include "texts.h"
 #include "in_depth.h"
diff --git a/callback.d b/callback.d
deleted file mode 100644
index 99127b3..0000000
--- a/callback.d
+++ /dev/null
@@ -1,3 +0,0 @@
-callback.o: callback.c tree.h \
- /gnu/store/hsby4biv4wjywr7slvjf0ykk1xzf31xb-glib-2.78.0/include/glib-2.0/glib.h \
- display.h contain.h texts.h in_depth.h
diff --git a/callback.o b/callback.o
deleted file mode 100644
index 11aea68..0000000
Binary files a/callback.o and /dev/null differ
diff --git a/contain.c b/contain.c
index 4278d85..20545a4 100644
--- a/contain.c
+++ b/contain.c
@@ -1,11 +1,10 @@
 #include <stdio.h>
 #include <gtk-4.0/gtk/gtk.h>
 
-#include "tree.h"
-#include "display.h"
-#include "contain.h"
-#include "texts.h"
 #include "callback.h"
+#include "display.h"
+#include "tree.h"
+#include "texts.h"
 
 // https://blog.gtk.org/2020/09/08/on-list-models/  <  TODO
 // https://docs.gtk.org/gtk4/visual_index.html  <  widgets gallery
diff --git a/contain.d b/contain.d
deleted file mode 100644
index 6020cab..0000000
--- a/contain.d
+++ /dev/null
@@ -1,3 +0,0 @@
-contain.o: contain.c tree.h \
- /gnu/store/hsby4biv4wjywr7slvjf0ykk1xzf31xb-glib-2.78.0/include/glib-2.0/glib.h \
- display.h contain.h texts.h callback.h
diff --git a/contain.o b/contain.o
deleted file mode 100644
index bdddc98..0000000
Binary files a/contain.o and /dev/null differ
diff --git a/display.c b/display.c
index 32280dd..28040ce 100644
--- a/display.c
+++ b/display.c
@@ -1,9 +1,8 @@
 #include <stdio.h>
 #include <gtk-4.0/gtk/gtk.h>
 
-#include "tree.h"
-#include "display.h"
 #include "contain.h"
+#include "tree.h"
 #include "texts.h"
 
 //------------------------------------------------------------------------------
diff --git a/display.d b/display.d
deleted file mode 100644
index a6e3b45..0000000
--- a/display.d
+++ /dev/null
@@ -1,3 +0,0 @@
-display.o: display.c tree.h \
- /gnu/store/hsby4biv4wjywr7slvjf0ykk1xzf31xb-glib-2.78.0/include/glib-2.0/glib.h \
- display.h contain.h texts.h
diff --git a/display.o b/display.o
deleted file mode 100644
index f165c77..0000000
Binary files a/display.o and /dev/null differ
diff --git a/graph_area.d b/graph_area.d
deleted file mode 100644
index 7d9ddde..0000000
--- a/graph_area.d
+++ /dev/null
@@ -1,6 +0,0 @@
-graph_area.o: graph_area.c \
- /gnu/store/hsby4biv4wjywr7slvjf0ykk1xzf31xb-glib-2.78.0/include/glib-2.0/glib.h \
- contain.h graph_area.h \
- /gnu/store/0gxl8awg16qysdmxsflwnz0gyynrgs99-mesa-24.0.4/include/GL/glext.h \
- /gnu/store/0gxl8awg16qysdmxsflwnz0gyynrgs99-mesa-24.0.4/include/KHR/khrplatform.h \
- base.h
diff --git a/graph_area.o b/graph_area.o
deleted file mode 100644
index 8a6155c..0000000
Binary files a/graph_area.o and /dev/null differ
diff --git a/in_depth.d b/in_depth.d
deleted file mode 100644
index cced342..0000000
--- a/in_depth.d
+++ /dev/null
@@ -1 +0,0 @@
-in_depth.o: in_depth.c callback.h
diff --git a/in_depth.o b/in_depth.o
deleted file mode 100644
index d78f4ff..0000000
Binary files a/in_depth.o and /dev/null differ
diff --git a/main.d b/main.d
deleted file mode 100644
index 6c89c45..0000000
--- a/main.d
+++ /dev/null
@@ -1 +0,0 @@
-main.o: main.c callback.h
diff --git a/main.o b/main.o
deleted file mode 100644
index 396a812..0000000
Binary files a/main.o and /dev/null differ
diff --git a/myprogram b/myprogram
deleted file mode 100755
index cd64331..0000000
Binary files a/myprogram and /dev/null differ
diff --git a/texts.d b/texts.d
deleted file mode 100644
index 18de62c..0000000
--- a/texts.d
+++ /dev/null
@@ -1 +0,0 @@
-texts.o: texts.c
diff --git a/texts.o b/texts.o
deleted file mode 100644
index 8ea2834..0000000
Binary files a/texts.o and /dev/null differ
diff --git a/tree.d b/tree.d
deleted file mode 100644
index dccd5fb..0000000
--- a/tree.d
+++ /dev/null
@@ -1 +0,0 @@
-tree.o: tree.c contain.h texts.h callback.h
diff --git a/tree.o b/tree.o
deleted file mode 100644
index 4c14a06..0000000
Binary files a/tree.o and /dev/null differ