diff --git a/.gitattributes b/.gitattributes
index 918ea1010a663baf4edcb3d5ce1531cbe928aab0..e864820d53b19dd8d7eac12c0b2c7a1fccb22a88 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -89,11 +89,11 @@ ecrire/img_pack/breve-24.gif -text
 ecrire/img_pack/cache-24.gif -text
 ecrire/img_pack/cadenas-24.gif -text
 ecrire/img_pack/cal-jour.gif -text
-ecrire/img_pack/cal-messagerie.gif -text
+ecrire/img_pack/cal-messagerie.png -text
 ecrire/img_pack/cal-mois.gif -text
-ecrire/img_pack/cal-rv.gif -text
+ecrire/img_pack/cal-rv.png -text
 ecrire/img_pack/cal-semaine.gif -text
-ecrire/img_pack/cal-suivi.gif -text
+ecrire/img_pack/cal-suivi.png -text
 ecrire/img_pack/cal-today.gif -text
 ecrire/img_pack/calendrier-24.gif -text
 ecrire/img_pack/choix-layout.png -text
@@ -142,7 +142,7 @@ ecrire/img_pack/langues-off-12.gif -text
 ecrire/img_pack/logo-spip.gif -text
 ecrire/img_pack/loupe-moins.gif -text
 ecrire/img_pack/loupe-plus.gif -text
-ecrire/img_pack/loupe.gif -text
+ecrire/img_pack/loupe.png -text
 ecrire/img_pack/m_envoi.gif -text
 ecrire/img_pack/m_envoi_bleu.gif -text
 ecrire/img_pack/m_envoi_bleu_rtl.gif -text
@@ -153,7 +153,7 @@ ecrire/img_pack/message.gif -text
 ecrire/img_pack/messagerie-24.gif -text
 ecrire/img_pack/messagerie-48.png -text
 ecrire/img_pack/mot-cle-24.gif -text
-ecrire/img_pack/naviguer-site.gif -text
+ecrire/img_pack/naviguer-site.png -text
 ecrire/img_pack/ortho-24.gif -text
 ecrire/img_pack/pense-bete.gif -text
 ecrire/img_pack/petite-cle.gif -text
@@ -204,8 +204,8 @@ ecrire/img_pack/rv-12.gif -text
 ecrire/img_pack/rv.gif -text
 ecrire/img_pack/secteur-12.gif -text
 ecrire/img_pack/secteur-24.gif -text
-ecrire/img_pack/set-ecran-etroit.gif -text
-ecrire/img_pack/set-ecran.gif -text
+ecrire/img_pack/set-ecran-etroit.png -text
+ecrire/img_pack/set-ecran.png -text
 ecrire/img_pack/site-24.gif -text
 ecrire/img_pack/spip_out.gif -text
 ecrire/img_pack/statistiques-24.gif -text
@@ -218,7 +218,7 @@ ecrire/img_pack/tourner-180.gif -text
 ecrire/img_pack/tourner-droite.gif -text
 ecrire/img_pack/tourner-gauche.gif -text
 ecrire/img_pack/tout-site-24.gif -text
-ecrire/img_pack/tout-site.gif -text
+ecrire/img_pack/tout-site.png -text
 ecrire/img_pack/traductions-24.gif -text
 ecrire/img_pack/triangle-bas.gif -text
 ecrire/img_pack/triangle-bleu-bas.gif -text
diff --git a/ecrire/img_pack/cal-messagerie.gif b/ecrire/img_pack/cal-messagerie.gif
deleted file mode 100644
index 6bf67514b77e9b89cc2a967a583633ead3fcc7e0..0000000000000000000000000000000000000000
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diff --git a/ecrire/img_pack/cal-messagerie.png b/ecrire/img_pack/cal-messagerie.png
new file mode 100644
index 0000000000000000000000000000000000000000..b236b5fc2957eb171e5ce18673415eb0e5fc7c33
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diff --git a/ecrire/img_pack/cal-rv.gif b/ecrire/img_pack/cal-rv.gif
deleted file mode 100644
index fbe4d452fbb77432a998cd34fc209b47860eedfc..0000000000000000000000000000000000000000
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diff --git a/ecrire/img_pack/cal-rv.png b/ecrire/img_pack/cal-rv.png
new file mode 100644
index 0000000000000000000000000000000000000000..120ebde65998b850a9b1903dc4dd91448fc0f877
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diff --git a/ecrire/img_pack/cal-suivi.gif b/ecrire/img_pack/cal-suivi.gif
deleted file mode 100644
index 2aa32394a4fa7be0dcdf787ecea2bd82ff0f0c2d..0000000000000000000000000000000000000000
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diff --git a/ecrire/img_pack/cal-suivi.png b/ecrire/img_pack/cal-suivi.png
new file mode 100644
index 0000000000000000000000000000000000000000..ffef2312cd425e27fb1aa94de2507b6966c53874
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diff --git a/ecrire/img_pack/loupe.gif b/ecrire/img_pack/loupe.gif
deleted file mode 100644
index 9cf8429f4a8189835cbda28c486cbf3c6d714e73..0000000000000000000000000000000000000000
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diff --git a/ecrire/img_pack/loupe.png b/ecrire/img_pack/loupe.png
new file mode 100644
index 0000000000000000000000000000000000000000..a753f40c2a7d112057c608092a645a68f184bbb9
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diff --git a/ecrire/img_pack/naviguer-site.gif b/ecrire/img_pack/naviguer-site.gif
deleted file mode 100644
index 7b2479212828a53937b2daf47845b4bb995b46bc..0000000000000000000000000000000000000000
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diff --git a/ecrire/img_pack/naviguer-site.png b/ecrire/img_pack/naviguer-site.png
new file mode 100644
index 0000000000000000000000000000000000000000..76ce48f47e578cce2958935d41e185fd6f6ee9f5
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diff --git a/ecrire/img_pack/set-ecran-etroit.gif b/ecrire/img_pack/set-ecran-etroit.gif
deleted file mode 100644
index 4a624b9f1c3ffa5b9f2409c94fc3e5c84296c33d..0000000000000000000000000000000000000000
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diff --git a/ecrire/img_pack/set-ecran-etroit.png b/ecrire/img_pack/set-ecran-etroit.png
new file mode 100644
index 0000000000000000000000000000000000000000..33676e24f2c1b786f63a8b91f351b22fe258b72e
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diff --git a/ecrire/img_pack/set-ecran.gif b/ecrire/img_pack/set-ecran.gif
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index fd0d86592a545850e7ff354136f6ff0d828a43e0..0000000000000000000000000000000000000000
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diff --git a/ecrire/img_pack/set-ecran.png b/ecrire/img_pack/set-ecran.png
new file mode 100644
index 0000000000000000000000000000000000000000..02b73863f3819c5302ccddf72c86887c37fbebb5
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diff --git a/ecrire/img_pack/tout-site.gif b/ecrire/img_pack/tout-site.gif
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index caa4d9f0de5eeb9d85a8779979c9bd7287a2ecc2..0000000000000000000000000000000000000000
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diff --git a/ecrire/img_pack/tout-site.png b/ecrire/img_pack/tout-site.png
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index 0000000000000000000000000000000000000000..56a92713921635f9bfd66c993b35dd56c8f09ccf
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