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diff --git a/admin/themes/default/images/logo.png b/admin/themes/default/images/logo.png
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diff --git a/admin/themes/default/images/piwigo-orange.svg b/admin/themes/default/images/piwigo-orange.svg
new file mode 100644
index 000000000..582608ff7
--- /dev/null
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+</svg>
diff --git a/admin/themes/default/template/install.tpl b/admin/themes/default/template/install.tpl
index 6af851c8a..ef9a7720a 100644
--- a/admin/themes/default/template/install.tpl
+++ b/admin/themes/default/template/install.tpl
@@ -52,8 +52,9 @@ body {
 
 #theHeader {
   display: block;
-  background:url("admin/themes/clear/images/piwigo_logo_big.png") no-repeat scroll center 20px transparent;
+  background:url("admin/themes/default/images/piwigo-orange.svg") no-repeat scroll center 20px transparent;
   height:100px;
+  background-size: 300px;
 }
 
 fieldset {
diff --git a/admin/themes/default/template/upgrade.tpl b/admin/themes/default/template/upgrade.tpl
index abf11291f..c56419e2c 100644
--- a/admin/themes/default/template/upgrade.tpl
+++ b/admin/themes/default/template/upgrade.tpl
@@ -45,8 +45,9 @@ body {
 
 #theHeader {
   display: block;
-  background:url("admin/themes/clear/images/piwigo_logo_big.png") no-repeat scroll center 20px transparent;
+  background:url("admin/themes/default/images/piwigo-orange.svg") no-repeat scroll center 20px transparent;
   height:100px;
+  background-size: 300px;
 }
 
 fieldset {
diff --git a/admin/themes/roma/images/piwigo_logo_small.png b/admin/themes/roma/images/piwigo_logo_small.png
deleted file mode 100644
index 5ee4bd5a1..000000000
Binary files a/admin/themes/roma/images/piwigo_logo_small.png and /dev/null differ