diff --git a/extra/galois-talk/authors.txt b/extra/galois-talk/authors.txt
new file mode 100644
index 0000000000..1901f27a24
--- /dev/null
+++ b/extra/galois-talk/authors.txt
@@ -0,0 +1 @@
+Slava Pestov
diff --git a/extra/galois-talk/summary.txt b/extra/galois-talk/summary.txt
new file mode 100644
index 0000000000..00f30acf8d
--- /dev/null
+++ b/extra/galois-talk/summary.txt
@@ -0,0 +1 @@
+Slides from a talk at Galois by Slava Pestov, October 2008
diff --git a/extra/galois-talk/tags.txt b/extra/galois-talk/tags.txt
new file mode 100644
index 0000000000..cb5fc203e1
--- /dev/null
+++ b/extra/galois-talk/tags.txt
@@ -0,0 +1 @@
+demos
diff --git a/extra/google-tech-talk/authors.txt b/extra/google-tech-talk/authors.txt
new file mode 100644
index 0000000000..1901f27a24
--- /dev/null
+++ b/extra/google-tech-talk/authors.txt
@@ -0,0 +1 @@
+Slava Pestov
diff --git a/extra/google-tech-talk/summary.txt b/extra/google-tech-talk/summary.txt
new file mode 100644
index 0000000000..1747a569c9
--- /dev/null
+++ b/extra/google-tech-talk/summary.txt
@@ -0,0 +1 @@
+Slides from Google Tech Talk by Slava Pestov, October 2008
diff --git a/extra/google-tech-talk/tags.txt b/extra/google-tech-talk/tags.txt
new file mode 100644
index 0000000000..cb5fc203e1
--- /dev/null
+++ b/extra/google-tech-talk/tags.txt
@@ -0,0 +1 @@
+demos
diff --git a/extra/slides/slides.factor b/extra/slides/slides.factor
index 2940bcbfcb..dc8bdd4576 100755
--- a/extra/slides/slides.factor
+++ b/extra/slides/slides.factor
@@ -48,19 +48,17 @@ IN: slides
 : $divider ( -- )
     [
         <gadget>
-        T{ gradient f
-           {
-             T{ rgba f 0.25 0.25 0.25 1.0 }
-             T{ rgba f 1.0 1.0 1.0 0.0 }
-           }
-         } >>interior
+        {
+            T{ rgba f 0.25 0.25 0.25 1.0 }
+            T{ rgba f 1.0 1.0 1.0 0.0 }
+        } <gradient> >>interior
         { 800 10 } >>dim
         { 1 0 } >>orientation
         gadget.
     ] ($block) ;
 
 : page-theme ( gadget -- )
-    T{ gradient f { T{ rgba f 0.8 0.8 1.0 1.0 } T{ rgba f 0.8 1.0 1.0 1.0 } } }
+    { T{ rgba f 0.8 0.8 1.0 1.0 } T{ rgba f 0.8 1.0 1.0 1.0 } } <gradient>
     >>interior drop ;
 
 : <page> ( list -- gadget )
diff --git a/extra/vpri-talk/authors.txt b/extra/vpri-talk/authors.txt
new file mode 100644
index 0000000000..1901f27a24
--- /dev/null
+++ b/extra/vpri-talk/authors.txt
@@ -0,0 +1 @@
+Slava Pestov
diff --git a/extra/vpri-talk/summary.txt b/extra/vpri-talk/summary.txt
new file mode 100644
index 0000000000..1ebcc4b114
--- /dev/null
+++ b/extra/vpri-talk/summary.txt
@@ -0,0 +1 @@
+Slides from a talk at VPRI by Slava Pestov, October 2008
diff --git a/extra/vpri-talk/tags.txt b/extra/vpri-talk/tags.txt
new file mode 100644
index 0000000000..cb5fc203e1
--- /dev/null
+++ b/extra/vpri-talk/tags.txt
@@ -0,0 +1 @@
+demos