diff --git a/django/contrib/admin/static/admin/css/base.css b/django/contrib/admin/static/admin/css/base.css
index 1439b5d675..9fef3a8bc1 100644
--- a/django/contrib/admin/static/admin/css/base.css
+++ b/django/contrib/admin/static/admin/css/base.css
@@ -661,45 +661,34 @@ a.deletelink:hover {
 .object-tools li {
     display: block;
     float: left;
-    background: url(../img/tool-left.gif) 0 0 no-repeat;
-    padding: 0 0 0 8px;
-    margin-left: 2px;
+    margin-left: 5px;
     height: 16px;
 }
 
-.object-tools li:hover {
-    background: url(../img/tool-left_over.gif) 0 0 no-repeat;
+.object-tools a {
+    border-radius: 15px;
 }
 
 .object-tools a:link, .object-tools a:visited {
     display: block;
     float: left;
     color: white;
-    padding: .1em 14px .1em 8px;
-    height: 14px;
-    background: #999 url(../img/tool-right.gif) 100% 0 no-repeat;
+    padding: .2em 10px;
+    background: #999;
 }
 
 .object-tools a:hover, .object-tools li:hover a {
-    background: #5b80b2 url(../img/tool-right_over.gif) 100% 0 no-repeat;
+    background-color: #5b80b2;
 }
 
 .object-tools a.viewsitelink, .object-tools a.golink {
-    background: #999 url(../img/tooltag-arrowright.gif) top right no-repeat;
-    padding-right: 28px;
-}
-
-.object-tools a.viewsitelink:hover, .object-tools a.golink:hover {
-    background: #5b80b2 url(../img/tooltag-arrowright_over.gif) top right no-repeat;
+    background: #999 url(../img/tooltag-arrowright.png) 95% center no-repeat;
+    padding-right: 26px;
 }
 
 .object-tools a.addlink {
-    background: #999 url(../img/tooltag-add.gif) top right no-repeat;
-    padding-right: 28px;
-}
-
-.object-tools a.addlink:hover {
-    background: #5b80b2 url(../img/tooltag-add_over.gif) top right no-repeat;
+    background: #999 url(../img/tooltag-add.png) 95% center no-repeat;
+    padding-right: 26px;
 }
 
 /* OBJECT HISTORY */
@@ -837,4 +826,3 @@ table#change-history tbody th {
     background: #eee url(../img/nav-bg.gif) bottom left repeat-x;
     color: #666;
 }
-
diff --git a/django/contrib/admin/static/admin/css/widgets.css b/django/contrib/admin/static/admin/css/widgets.css
index d61cd3a218..56817228f3 100644
--- a/django/contrib/admin/static/admin/css/widgets.css
+++ b/django/contrib/admin/static/admin/css/widgets.css
@@ -54,8 +54,8 @@
 .selector ul.selector-chooser {
     float: left;
     width: 22px;
-    height: 50px;
-    background: url(../img/chooser-bg.gif) top center no-repeat;
+    background-color: #eee;
+    border-radius: 10px;
     margin: 10em 5px 0 5px;
     padding: 0;
 }
@@ -169,7 +169,8 @@ a.active.selector-clearall {
     height: 22px;
     width: 50px;
     margin: 0 0 3px 40%;
-    background: url(../img/chooser_stacked-bg.gif) top center no-repeat;
+    background-color: #eee;
+    border-radius: 10px;
 }
 
 .stacked .selector-chooser li {
@@ -575,4 +576,3 @@ ul.orderer li.deleted:hover, ul.orderer li.deleted a.selector:hover {
     font-size: 11px;
     border-top: 1px solid #ddd;
 }
-
diff --git a/django/contrib/admin/static/admin/img/chooser-bg.gif b/django/contrib/admin/static/admin/img/chooser-bg.gif
deleted file mode 100644
index 30e83c2518..0000000000
Binary files a/django/contrib/admin/static/admin/img/chooser-bg.gif and /dev/null differ
diff --git a/django/contrib/admin/static/admin/img/chooser_stacked-bg.gif b/django/contrib/admin/static/admin/img/chooser_stacked-bg.gif
deleted file mode 100644
index 5d104b6d98..0000000000
Binary files a/django/contrib/admin/static/admin/img/chooser_stacked-bg.gif and /dev/null differ
diff --git a/django/contrib/admin/static/admin/img/tool-left.gif b/django/contrib/admin/static/admin/img/tool-left.gif
deleted file mode 100644
index 011490ff3a..0000000000
Binary files a/django/contrib/admin/static/admin/img/tool-left.gif and /dev/null differ
diff --git a/django/contrib/admin/static/admin/img/tool-left_over.gif b/django/contrib/admin/static/admin/img/tool-left_over.gif
deleted file mode 100644
index 937e07bb1a..0000000000
Binary files a/django/contrib/admin/static/admin/img/tool-left_over.gif and /dev/null differ
diff --git a/django/contrib/admin/static/admin/img/tool-right.gif b/django/contrib/admin/static/admin/img/tool-right.gif
deleted file mode 100644
index cdc140cc59..0000000000
Binary files a/django/contrib/admin/static/admin/img/tool-right.gif and /dev/null differ
diff --git a/django/contrib/admin/static/admin/img/tool-right_over.gif b/django/contrib/admin/static/admin/img/tool-right_over.gif
deleted file mode 100644
index 4db977e838..0000000000
Binary files a/django/contrib/admin/static/admin/img/tool-right_over.gif and /dev/null differ
diff --git a/django/contrib/admin/static/admin/img/tooltag-add.gif b/django/contrib/admin/static/admin/img/tooltag-add.gif
deleted file mode 100644
index 8b53d49ae5..0000000000
Binary files a/django/contrib/admin/static/admin/img/tooltag-add.gif and /dev/null differ
diff --git a/django/contrib/admin/static/admin/img/tooltag-add.png b/django/contrib/admin/static/admin/img/tooltag-add.png
new file mode 100644
index 0000000000..f352cf590f
Binary files /dev/null and b/django/contrib/admin/static/admin/img/tooltag-add.png differ
diff --git a/django/contrib/admin/static/admin/img/tooltag-add_over.gif b/django/contrib/admin/static/admin/img/tooltag-add_over.gif
deleted file mode 100644
index bfc52f10de..0000000000
Binary files a/django/contrib/admin/static/admin/img/tooltag-add_over.gif and /dev/null differ
diff --git a/django/contrib/admin/static/admin/img/tooltag-arrowright.gif b/django/contrib/admin/static/admin/img/tooltag-arrowright.gif
deleted file mode 100644
index cdaaae77ed..0000000000
Binary files a/django/contrib/admin/static/admin/img/tooltag-arrowright.gif and /dev/null differ
diff --git a/django/contrib/admin/static/admin/img/tooltag-arrowright.png b/django/contrib/admin/static/admin/img/tooltag-arrowright.png
new file mode 100644
index 0000000000..ac1ac5b89a
Binary files /dev/null and b/django/contrib/admin/static/admin/img/tooltag-arrowright.png differ
diff --git a/django/contrib/admin/static/admin/img/tooltag-arrowright_over.gif b/django/contrib/admin/static/admin/img/tooltag-arrowright_over.gif
deleted file mode 100644
index 7163189604..0000000000
Binary files a/django/contrib/admin/static/admin/img/tooltag-arrowright_over.gif and /dev/null differ
diff --git a/docs/releases/1.7.txt b/docs/releases/1.7.txt
index 8c5a0fb585..a7ab751dd4 100644
--- a/docs/releases/1.7.txt
+++ b/docs/releases/1.7.txt
@@ -72,6 +72,9 @@ Minor features
   allowing the ``published`` element to be included in the feed (which
   relies on ``pubdate``).
 
+* Buttons in :mod:`django.contrib.admin` now use the ``border-radius`` CSS
+  property for rounded corners rather than GIF background images.
+
 Backwards incompatible changes in 1.7
 =====================================