diff --git a/Doc/icons/blank.pbm b/Doc/icons/blank.pbm
deleted file mode 100644
index 3c72463..0000000
--- a/Doc/icons/blank.pbm
+++ /dev/null
@@ -1,4 +0,0 @@
-P4
-# CREATOR: XV Version 3.00  Rev: 3/30/93
-1 1
-
\ No newline at end of file
diff --git a/Doc/icons/contents_motif.gif b/Doc/icons/contents_motif.gif
index 7b3c904..afa2a17 100644
--- a/Doc/icons/contents_motif.gif
+++ b/Doc/icons/contents_motif.gif
Binary files differ
diff --git a/Doc/icons/index_motif.gif b/Doc/icons/index_motif.gif
index b9b3108..eb87b44 100644
--- a/Doc/icons/index_motif.gif
+++ b/Doc/icons/index_motif.gif
Binary files differ
diff --git a/Doc/icons/modules_motif.gif b/Doc/icons/modules_motif.gif
new file mode 100644
index 0000000..0add775
--- /dev/null
+++ b/Doc/icons/modules_motif.gif
Binary files differ
diff --git a/Doc/icons/next_motif.gif b/Doc/icons/next_motif.gif
index 928a32d..be1f585 100644
--- a/Doc/icons/next_motif.gif
+++ b/Doc/icons/next_motif.gif
Binary files differ
diff --git a/Doc/icons/previous_motif.gif b/Doc/icons/previous_motif.gif
index c38778c..6599b5b 100644
--- a/Doc/icons/previous_motif.gif
+++ b/Doc/icons/previous_motif.gif
Binary files differ
diff --git a/Doc/icons/up_motif.gif b/Doc/icons/up_motif.gif
index c7c9cf7..6ead538 100644
--- a/Doc/icons/up_motif.gif
+++ b/Doc/icons/up_motif.gif
Binary files differ