diff --git a/extra/nehe/2/2.factor b/extra/nehe/2/2.factor
index 0d6d498b37..8be2970b92 100644
--- a/extra/nehe/2/2.factor
+++ b/extra/nehe/2/2.factor
@@ -1,5 +1,6 @@
 USING: arrays kernel math opengl opengl.gl opengl.glu
-opengl.demo-support ui ui.gadgets ui.render literals accessors ;
+opengl.demo-support ui ui.gadgets ui.render ui.pixel-formats
+literals accessors ;
 IN: nehe.2
 
 TUPLE: nehe2-gadget < gadget ;
@@ -8,36 +9,36 @@ CONSTANT: width 256
 CONSTANT: height 256
 
 : <nehe2-gadget> (  -- gadget )
-  nehe2-gadget new ;
+    nehe2-gadget new ;
 
 M: nehe2-gadget draw-gadget* ( gadget -- )
-  drop
-  GL_PROJECTION glMatrixMode
-  glLoadIdentity
-  45.0 width height / >float 0.1 100.0 gluPerspective
-  GL_MODELVIEW glMatrixMode
-  glLoadIdentity
-  GL_SMOOTH glShadeModel
-  0.0 0.0 0.0 0.0 glClearColor
-  1.0 glClearDepth
-  GL_DEPTH_TEST glEnable
-  GL_LEQUAL glDepthFunc
-  GL_PERSPECTIVE_CORRECTION_HINT GL_NICEST glHint
-  GL_COLOR_BUFFER_BIT GL_DEPTH_BUFFER_BIT bitor glClear
-  glLoadIdentity
-  -1.5 0.0 -6.0 glTranslatef
-  GL_TRIANGLES [
-    0.0 1.0 0.0 glVertex3f
-    -1.0 -1.0 0.0 glVertex3f
-    1.0 -1.0 0.0 glVertex3f
-  ] do-state
-  3.0 0.0 0.0 glTranslatef
-  GL_QUADS [
-    -1.0 1.0 0.0 glVertex3f
-    1.0 1.0 0.0 glVertex3f
-    1.0 -1.0 0.0 glVertex3f
-    -1.0 -1.0 0.0 glVertex3f
-  ] do-state ;
+    drop
+    GL_PROJECTION glMatrixMode
+    glLoadIdentity
+    45.0 width height / >float 0.1 100.0 gluPerspective
+    GL_MODELVIEW glMatrixMode
+    glLoadIdentity
+    GL_SMOOTH glShadeModel
+    0.0 0.0 0.0 0.0 glClearColor
+    1.0 glClearDepth
+    GL_DEPTH_TEST glEnable
+    GL_LEQUAL glDepthFunc
+    GL_PERSPECTIVE_CORRECTION_HINT GL_NICEST glHint
+    GL_COLOR_BUFFER_BIT GL_DEPTH_BUFFER_BIT bitor glClear
+    glLoadIdentity
+    -1.5 0.0 -6.0 glTranslatef
+    GL_TRIANGLES [
+        0.0 1.0 0.0 glVertex3f
+        -1.0 -1.0 0.0 glVertex3f
+        1.0 -1.0 0.0 glVertex3f
+    ] do-state
+    3.0 0.0 0.0 glTranslatef
+    GL_QUADS [
+        -1.0 1.0 0.0 glVertex3f
+        1.0 1.0 0.0 glVertex3f
+        1.0 -1.0 0.0 glVertex3f
+        -1.0 -1.0 0.0 glVertex3f
+    ] do-state ;
 
 MAIN-WINDOW: run2
     {
@@ -49,4 +50,4 @@ MAIN-WINDOW: run2
             T{ depth-bits { value 16 } }
         } }
     }
-  <nehe2-gadget> >>gadgets ;
+    <nehe2-gadget> >>gadgets ;
diff --git a/extra/nehe/4/4.factor b/extra/nehe/4/4.factor
index 0ca23570e9..377f1f2a00 100644
--- a/extra/nehe/4/4.factor
+++ b/extra/nehe/4/4.factor
@@ -1,6 +1,6 @@
 USING: arrays kernel math opengl opengl.gl opengl.glu
-opengl.demo-support ui ui.gadgets ui.render threads accessors
-calendar literals ;
+opengl.demo-support ui ui.gadgets ui.render ui.pixel-formats
+threads accessors calendar literals ;
 IN: nehe.4
 
 TUPLE: nehe4-gadget < gadget rtri rquad thread quit? ;
@@ -10,63 +10,63 @@ CONSTANT: height 256
 : redraw-interval ( -- dt ) 10 milliseconds ;
 
 : <nehe4-gadget> (  -- gadget )
-  nehe4-gadget new
+    nehe4-gadget new
     0.0 >>rtri
     0.0 >>rquad ;
 
 M: nehe4-gadget draw-gadget* ( gadget -- )
-  GL_PROJECTION glMatrixMode
-  glLoadIdentity
-  45.0 width height / >float 0.1 100.0 gluPerspective
-  GL_MODELVIEW glMatrixMode
-  glLoadIdentity
-  GL_SMOOTH glShadeModel
-  0.0 0.0 0.0 0.0 glClearColor
-  1.0 glClearDepth
-  GL_DEPTH_TEST glEnable
-  GL_LEQUAL glDepthFunc
-  GL_PERSPECTIVE_CORRECTION_HINT GL_NICEST glHint
-  GL_COLOR_BUFFER_BIT GL_DEPTH_BUFFER_BIT bitor glClear
-  glLoadIdentity
-  -1.5 0.0 -6.0 glTranslatef
-  dup rtri>> 0.0 1.0 0.0 glRotatef
+    GL_PROJECTION glMatrixMode
+    glLoadIdentity
+    45.0 width height / >float 0.1 100.0 gluPerspective
+    GL_MODELVIEW glMatrixMode
+    glLoadIdentity
+    GL_SMOOTH glShadeModel
+    0.0 0.0 0.0 0.0 glClearColor
+    1.0 glClearDepth
+    GL_DEPTH_TEST glEnable
+    GL_LEQUAL glDepthFunc
+    GL_PERSPECTIVE_CORRECTION_HINT GL_NICEST glHint
+    GL_COLOR_BUFFER_BIT GL_DEPTH_BUFFER_BIT bitor glClear
+    glLoadIdentity
+    -1.5 0.0 -6.0 glTranslatef
+    dup rtri>> 0.0 1.0 0.0 glRotatef
 
-  GL_TRIANGLES [
-    1.0 0.0 0.0 glColor3f
-    0.0 1.0 0.0 glVertex3f
-    0.0 1.0 0.0 glColor3f
-    -1.0 -1.0 0.0 glVertex3f
-    0.0 0.0 1.0 glColor3f
-    1.0 -1.0 0.0 glVertex3f
-  ] do-state
+    GL_TRIANGLES [
+        1.0 0.0 0.0 glColor3f
+        0.0 1.0 0.0 glVertex3f
+        0.0 1.0 0.0 glColor3f
+        -1.0 -1.0 0.0 glVertex3f
+        0.0 0.0 1.0 glColor3f
+        1.0 -1.0 0.0 glVertex3f
+    ] do-state
 
-  glLoadIdentity
+    glLoadIdentity
 
-  1.5 0.0 -6.0 glTranslatef
-  dup rquad>> 1.0 0.0 0.0 glRotatef
-  0.5 0.5 1.0 glColor3f
-  GL_QUADS [
-    -1.0 1.0 0.0 glVertex3f
-    1.0 1.0 0.0 glVertex3f
-    1.0 -1.0 0.0 glVertex3f
-    -1.0 -1.0 0.0 glVertex3f
-  ] do-state
-  [ 0.2 + ] change-rtri
-  [ 0.15 - ] change-rquad drop ;
+    1.5 0.0 -6.0 glTranslatef
+    dup rquad>> 1.0 0.0 0.0 glRotatef
+    0.5 0.5 1.0 glColor3f
+    GL_QUADS [
+        -1.0 1.0 0.0 glVertex3f
+        1.0 1.0 0.0 glVertex3f
+        1.0 -1.0 0.0 glVertex3f
+        -1.0 -1.0 0.0 glVertex3f
+    ] do-state
+    [ 0.2 + ] change-rtri
+    [ 0.15 - ] change-rquad drop ;
 
 : nehe4-update-thread ( gadget -- )
-  dup quit?>> [ drop ] [
-    redraw-interval sleep
-    dup relayout-1
-    nehe4-update-thread
-  ] if ;
+    dup quit?>> [ drop ] [
+        redraw-interval sleep
+        dup relayout-1
+        nehe4-update-thread
+    ] if ;
 
 M: nehe4-gadget graft* ( gadget -- )
-  f >>quit?
-  [ nehe4-update-thread ] curry in-thread ;
+    f >>quit?
+    [ nehe4-update-thread ] curry in-thread ;
 
 M: nehe4-gadget ungraft* ( gadget -- )
-  t >>quit? drop ;
+    t >>quit? drop ;
 
 MAIN-WINDOW: run4
     {
diff --git a/extra/nehe/5/5.factor b/extra/nehe/5/5.factor
index a0b6cddec6..9fc19e1cfb 100644
--- a/extra/nehe/5/5.factor
+++ b/extra/nehe/5/5.factor
@@ -1,6 +1,6 @@
 USING: arrays kernel math opengl opengl.gl opengl.glu
-opengl.demo-support ui ui.gadgets ui.render threads accessors
-calendar literals ;
+opengl.demo-support ui ui.gadgets ui.render ui.pixel-formats
+threads accessors calendar literals ;
 IN: nehe.5
 
 TUPLE: nehe5-gadget < gadget rtri rquad thread quit? ;
@@ -9,118 +9,118 @@ CONSTANT: height 256
 : redraw-interval ( -- dt ) 10 milliseconds ;
 
 : <nehe5-gadget> (  -- gadget )
-  nehe5-gadget new
+    nehe5-gadget new
     0.0 >>rtri
     0.0 >>rquad ;
 
 M: nehe5-gadget draw-gadget* ( gadget -- )
-  GL_PROJECTION glMatrixMode
-  glLoadIdentity
-  45.0 width height / >float 0.1 100.0 gluPerspective
-  GL_MODELVIEW glMatrixMode
-  glLoadIdentity
-  GL_SMOOTH glShadeModel
-  0.0 0.0 0.0 0.0 glClearColor
-  1.0 glClearDepth
-  GL_DEPTH_TEST glEnable
-  GL_LEQUAL glDepthFunc
-  GL_PERSPECTIVE_CORRECTION_HINT GL_NICEST glHint
-  GL_COLOR_BUFFER_BIT GL_DEPTH_BUFFER_BIT bitor glClear
-  glLoadIdentity
-  -1.5 0.0 -6.0 glTranslatef
-  dup rtri>> 0.0 1.0 0.0 glRotatef
+    GL_PROJECTION glMatrixMode
+    glLoadIdentity
+    45.0 width height / >float 0.1 100.0 gluPerspective
+    GL_MODELVIEW glMatrixMode
+    glLoadIdentity
+    GL_SMOOTH glShadeModel
+    0.0 0.0 0.0 0.0 glClearColor
+    1.0 glClearDepth
+    GL_DEPTH_TEST glEnable
+    GL_LEQUAL glDepthFunc
+    GL_PERSPECTIVE_CORRECTION_HINT GL_NICEST glHint
+    GL_COLOR_BUFFER_BIT GL_DEPTH_BUFFER_BIT bitor glClear
+    glLoadIdentity
+    -1.5 0.0 -6.0 glTranslatef
+    dup rtri>> 0.0 1.0 0.0 glRotatef
 
-  GL_TRIANGLES [
-    1.0 0.0 0.0 glColor3f
-    0.0 1.0 0.0 glVertex3f
-    0.0 1.0 0.0 glColor3f
-    -1.0 -1.0 1.0 glVertex3f
-    0.0 0.0 1.0 glColor3f
-    1.0 -1.0 1.0 glVertex3f
+    GL_TRIANGLES [
+        1.0 0.0 0.0 glColor3f
+        0.0 1.0 0.0 glVertex3f
+        0.0 1.0 0.0 glColor3f
+        -1.0 -1.0 1.0 glVertex3f
+        0.0 0.0 1.0 glColor3f
+        1.0 -1.0 1.0 glVertex3f
 
-    1.0 0.0 0.0 glColor3f
-    0.0 1.0 0.0 glVertex3f
-    0.0 0.0 1.0 glColor3f
-    1.0 -1.0 1.0 glVertex3f
-    0.0 1.0 0.0 glColor3f
-    1.0 -1.0 -1.0 glVertex3f
+        1.0 0.0 0.0 glColor3f
+        0.0 1.0 0.0 glVertex3f
+        0.0 0.0 1.0 glColor3f
+        1.0 -1.0 1.0 glVertex3f
+        0.0 1.0 0.0 glColor3f
+        1.0 -1.0 -1.0 glVertex3f
 
-    1.0 0.0 0.0 glColor3f
-    0.0 1.0 0.0 glVertex3f
-    0.0 1.0 0.0 glColor3f
-    1.0 -1.0 -1.0 glVertex3f
-    0.0 0.0 1.0 glColor3f
-    -1.0 -1.0 -1.0 glVertex3f
+        1.0 0.0 0.0 glColor3f
+        0.0 1.0 0.0 glVertex3f
+        0.0 1.0 0.0 glColor3f
+        1.0 -1.0 -1.0 glVertex3f
+        0.0 0.0 1.0 glColor3f
+        -1.0 -1.0 -1.0 glVertex3f
 
-    1.0 0.0 0.0 glColor3f
-    0.0 1.0 0.0 glVertex3f
-    0.0 0.0 1.0 glColor3f
-    -1.0 -1.0 -1.0 glVertex3f
-    0.0 1.0 0.0 glColor3f
-    -1.0 -1.0 1.0 glVertex3f
-  ] do-state
+        1.0 0.0 0.0 glColor3f
+        0.0 1.0 0.0 glVertex3f
+        0.0 0.0 1.0 glColor3f
+        -1.0 -1.0 -1.0 glVertex3f
+        0.0 1.0 0.0 glColor3f
+        -1.0 -1.0 1.0 glVertex3f
+    ] do-state
 
-  glLoadIdentity
+    glLoadIdentity
 
-  1.5 0.0 -7.0 glTranslatef
-  dup rquad>> 1.0 0.0 0.0 glRotatef
-  GL_QUADS [
-    0.0 1.0 0.0 glColor3f
-    1.0 1.0 -1.0 glVertex3f
-    -1.0 1.0 -1.0 glVertex3f
-    -1.0 1.0 1.0 glVertex3f
-    1.0 1.0 1.0 glVertex3f
+    1.5 0.0 -7.0 glTranslatef
+    dup rquad>> 1.0 0.0 0.0 glRotatef
+    GL_QUADS [
+        0.0 1.0 0.0 glColor3f
+        1.0 1.0 -1.0 glVertex3f
+        -1.0 1.0 -1.0 glVertex3f
+        -1.0 1.0 1.0 glVertex3f
+        1.0 1.0 1.0 glVertex3f
 
-    1.0 0.5 0.0 glColor3f
-    1.0 -1.0 1.0 glVertex3f
-    -1.0 -1.0 1.0 glVertex3f
-    -1.0 -1.0 -1.0 glVertex3f
-    1.0 -1.0 -1.0 glVertex3f
+        1.0 0.5 0.0 glColor3f
+        1.0 -1.0 1.0 glVertex3f
+        -1.0 -1.0 1.0 glVertex3f
+        -1.0 -1.0 -1.0 glVertex3f
+        1.0 -1.0 -1.0 glVertex3f
 
-    1.0 0.0 0.0 glColor3f
-    1.0 1.0 1.0 glVertex3f
-    -1.0 1.0 1.0 glVertex3f
-    -1.0 -1.0 1.0 glVertex3f
-    1.0 -1.0 1.0 glVertex3f
+        1.0 0.0 0.0 glColor3f
+        1.0 1.0 1.0 glVertex3f
+        -1.0 1.0 1.0 glVertex3f
+        -1.0 -1.0 1.0 glVertex3f
+        1.0 -1.0 1.0 glVertex3f
 
-    1.0 1.0 0.0 glColor3f
-    1.0 -1.0 -1.0 glVertex3f
-    -1.0 -1.0 -1.0 glVertex3f
-    -1.0 1.0 -1.0 glVertex3f
-    1.0 1.0 -1.0 glVertex3f
+        1.0 1.0 0.0 glColor3f
+        1.0 -1.0 -1.0 glVertex3f
+        -1.0 -1.0 -1.0 glVertex3f
+        -1.0 1.0 -1.0 glVertex3f
+        1.0 1.0 -1.0 glVertex3f
 
-    0.0 0.0 1.0 glColor3f
-    -1.0 1.0 1.0 glVertex3f
-    -1.0 1.0 -1.0 glVertex3f
-    -1.0 -1.0 -1.0 glVertex3f
-    -1.0 -1.0 1.0 glVertex3f
+        0.0 0.0 1.0 glColor3f
+        -1.0 1.0 1.0 glVertex3f
+        -1.0 1.0 -1.0 glVertex3f
+        -1.0 -1.0 -1.0 glVertex3f
+        -1.0 -1.0 1.0 glVertex3f
 
-    1.0 0.0 1.0 glColor3f
-    1.0 1.0 -1.0 glVertex3f
-    1.0 1.0 1.0 glVertex3f
-    1.0 -1.0 1.0 glVertex3f
-    1.0 -1.0 -1.0 glVertex3f
-  ] do-state 
-  [ 0.2 + ] change-rtri
-  [ 0.15 - ] change-rquad drop ;
+        1.0 0.0 1.0 glColor3f
+        1.0 1.0 -1.0 glVertex3f
+        1.0 1.0 1.0 glVertex3f
+        1.0 -1.0 1.0 glVertex3f
+        1.0 -1.0 -1.0 glVertex3f
+    ] do-state
+    [ 0.2 + ] change-rtri
+    [ 0.15 - ] change-rquad drop ;
 
-: nehe5-update-thread ( gadget -- )  
-  dup quit?>> [
-    drop
-  ] [
-    redraw-interval sleep 
-    dup relayout-1  
-    nehe5-update-thread 
-  ] if ;
+: nehe5-update-thread ( gadget -- )
+    dup quit?>> [
+        drop
+    ] [
+        redraw-interval sleep
+        dup relayout-1
+        nehe5-update-thread
+    ] if ;
 
 M: nehe5-gadget graft* ( gadget -- )
-  f >>quit?
-  [ nehe5-update-thread ] curry in-thread ;
+    f >>quit?
+    [ nehe5-update-thread ] curry in-thread ;
 
 M: nehe5-gadget ungraft* ( gadget -- )
-  t >>quit? drop ;
+    t >>quit? drop ;
 
-MAIN-WINDOW: run4
+MAIN-WINDOW: run5
     {
         { title "NeHe Tutorial 5" }
         { pref-dim { $ width $ height } }