diff --git a/pages.c b/contain.c
similarity index 99%
rename from pages.c
rename to contain.c
index c3b8f97..2d26600 100644
--- a/pages.c
+++ b/contain.c
@@ -2,8 +2,8 @@
 #include <gtk-4.0/gtk/gtk.h>
 
 #include "cold.h"
-#include "widgets.h"
-#include "pages.h"
+#include "display.h"
+#include "contain.h"
 #include "texts.h"
 
 
diff --git a/contain.d b/contain.d
new file mode 100644
index 0000000..6e9257d
--- /dev/null
+++ b/contain.d
@@ -0,0 +1 @@
+contain.o: contain.c cold.h display.h contain.h texts.h
diff --git a/pages.h b/contain.h
similarity index 100%
rename from pages.h
rename to contain.h
diff --git a/pages.o b/contain.o
similarity index 86%
rename from pages.o
rename to contain.o
index 551fb1d..67676cc 100644
Binary files a/pages.o and b/contain.o differ
diff --git a/widgets.c b/display.c
similarity index 99%
rename from widgets.c
rename to display.c
index 76dbc11..e5852ae 100644
--- a/widgets.c
+++ b/display.c
@@ -2,8 +2,8 @@
 #include <gtk-4.0/gtk/gtk.h>
 
 #include "cold.h"
-#include "widgets.h"
-#include "pages.h"
+#include "display.h"
+#include "contain.h"
 #include "texts.h"
 
 //------------------------------------------------------------------------------
diff --git a/display.d b/display.d
new file mode 100644
index 0000000..7d9c4d8
--- /dev/null
+++ b/display.d
@@ -0,0 +1 @@
+display.o: display.c cold.h display.h contain.h texts.h
diff --git a/widgets.h b/display.h
similarity index 100%
rename from widgets.h
rename to display.h
diff --git a/widgets.o b/display.o
similarity index 96%
rename from widgets.o
rename to display.o
index 44492cb..be6438d 100644
Binary files a/widgets.o and b/display.o differ
diff --git a/hot.c b/hot.c
index 3fe80b0..1938b8b 100644
--- a/hot.c
+++ b/hot.c
@@ -3,8 +3,8 @@
 
 #include "warm.h"
 #include "cold.h"
-#include "widgets.h"
-#include "pages.h"
+#include "display.h"
+#include "contain.h"
 #include "texts.h"
 
 //  https://forge.a-lec.org/gem-graph/gem-graph-client/src/branch/devel/Makefile
diff --git a/hot.d b/hot.d
index 7461b22..0a5b41c 100644
--- a/hot.d
+++ b/hot.d
@@ -1,3 +1,3 @@
 hot.o: hot.c warm.h \
  /gnu/store/fkmpkdav2zmz1k72989bdgpdrfac7rz1-glib-2.78.0/include/glib-2.0/glib.h \
- cold.h widgets.h pages.h texts.h
+ cold.h display.h contain.h texts.h
diff --git a/hot.h b/hot.h
index 3353fb3..6511602 100644
--- a/hot.h
+++ b/hot.h
@@ -9,6 +9,6 @@
 
 #include "warm.h"
 #include "cold.h"
-#include "widgets.h"
-#include "pages.h"
+#include "display.h"
+#include "contain.h"
 
diff --git a/main.c b/main.c
index 03eb2cd..094f0cc 100644
--- a/main.c
+++ b/main.c
@@ -10,8 +10,8 @@
 #include "hot.h"
 #include "warm.h"
 #include "cold.h"
-#include "widgets.h"
-#include "pages.h"
+#include "display.h"
+#include "contain.h"
 
 int main (int argc, char **argv)
 {
diff --git a/main.d b/main.d
index 3a2ea19..969681a 100644
--- a/main.d
+++ b/main.d
@@ -86,4 +86,4 @@ main.o: main.c hot.h warm.h \
  /gnu/store/fkmpkdav2zmz1k72989bdgpdrfac7rz1-glib-2.78.0/include/glib-2.0/glib/deprecated/grel.h \
  /gnu/store/fkmpkdav2zmz1k72989bdgpdrfac7rz1-glib-2.78.0/include/glib-2.0/glib/deprecated/gthread.h \
  /gnu/store/fkmpkdav2zmz1k72989bdgpdrfac7rz1-glib-2.78.0/include/glib-2.0/glib/glib-autocleanups.h \
- cold.h widgets.h pages.h
+ cold.h display.h contain.h
diff --git a/main.o b/main.o
index 3b05a94..3e74b0f 100644
Binary files a/main.o and b/main.o differ
diff --git a/myprogram b/myprogram
index 4a8e9bd..1823160 100755
Binary files a/myprogram and b/myprogram differ
diff --git a/pages.d b/pages.d
deleted file mode 100644
index 1126ba2..0000000
--- a/pages.d
+++ /dev/null
@@ -1 +0,0 @@
-pages.o: pages.c cold.h widgets.h pages.h texts.h
diff --git a/warm.c b/warm.c
index 8f16465..2c11386 100644
--- a/warm.c
+++ b/warm.c
@@ -2,8 +2,8 @@
 #include <gtk-4.0/gtk/gtk.h>
 
 #include "cold.h"
-#include "widgets.h"
-#include "pages.h"
+#include "display.h"
+#include "contain.h"
 #include "texts.h"
 
 //  https://docs.gtk.org/gtk4/visual_index.html  <  widgets gallery
diff --git a/warm.d b/warm.d
index f070fd7..ff34cde 100644
--- a/warm.d
+++ b/warm.d
@@ -1 +1 @@
-warm.o: warm.c cold.h widgets.h pages.h texts.h
+warm.o: warm.c cold.h display.h contain.h texts.h
diff --git a/warm.h b/warm.h
index 0b406b6..a183d8f 100644
--- a/warm.h
+++ b/warm.h
@@ -25,8 +25,8 @@
 #include <gtk-4.0/gtk/gtk.h>
 
 #include "cold.h"
-#include "widgets.h"
-#include "pages.h"
+#include "display.h"
+#include "contain.h"
 
 
 // https://blog.gtk.org/2020/09/08/on-list-models/  <  TODO
diff --git a/widgets.d b/widgets.d
deleted file mode 100644
index bbdc9b6..0000000
--- a/widgets.d
+++ /dev/null
@@ -1 +0,0 @@
-widgets.o: widgets.c cold.h widgets.h pages.h texts.h