diff --git a/Doc/icons/blank.pbm b/Doc/icons/blank.pbm
deleted file mode 100644
index 3c724639131..00000000000
--- 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 7b3c904b289..afa2a172d3f 100644
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diff --git a/Doc/icons/index_motif.gif b/Doc/icons/index_motif.gif
index b9b3108aa82..eb87b44e69c 100644
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diff --git a/Doc/icons/modules_motif.gif b/Doc/icons/modules_motif.gif
new file mode 100644
index 00000000000..0add775b46a
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diff --git a/Doc/icons/next_motif.gif b/Doc/icons/next_motif.gif
index 928a32db8a5..be1f585f6df 100644
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diff --git a/Doc/icons/previous_motif.gif b/Doc/icons/previous_motif.gif
index c38778c7c4d..6599b5bf222 100644
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diff --git a/Doc/icons/up_motif.gif b/Doc/icons/up_motif.gif
index c7c9cf72647..6ead538b1ed 100644
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