diff --git a/gui/Gui/Mainwindow.py b/gui/Gui/Mainwindow.py
index 4b73c87..550b7ed 100644
--- a/gui/Gui/Mainwindow.py
+++ b/gui/Gui/Mainwindow.py
@@ -115,20 +115,19 @@ class MainWindow(wx.Frame):
         #print "Default toolbar tool size: %s\n" % tb.GetToolBitmapSize()
 
         def getBmp(name):
-            bmp = wx.Bitmap(os.path.join("Images","%s.png" % name),wx.BITMAP_TYPE_PNG)
+            bmp = wx.Image(os.path.join("Images","%s.png" % name),wx.BITMAP_TYPE_PNG).ConvertToBitmap()
             if not bmp.Ok():
-                tsize = (32,32)
-                bmp = wx.EmptyBitmap(tsize)
+                bmp = wx.EmptyBitmap(32,32)
             return bmp
 
         bmpverify = getBmp("verify-button")
         bmpcharacterize = getBmp("characterize-button")
 
         # add the actual tools
-        tb.AddSimpleTool(ID_VERIFY, bmpverify,shortHelpString="Verify")
+        tb.AddSimpleTool(ID_VERIFY, bmpverify,shortHelpString="Verify claims in protocol")
         self.Bind(wx.EVT_TOOL, self.OnVerify, id=ID_VERIFY)
         tb.AddSimpleTool(ID_STATESPACE,
-                bmpcharacterize,shortHelpString="Statespace")
+                bmpcharacterize,shortHelpString="Generate statespace for all roles")
         self.Bind(wx.EVT_TOOL, self.OnStatespace, id=ID_STATESPACE)
 
         # tb.AddSeparator()
diff --git a/gui/Images/characterize-button.png b/gui/Images/characterize-button.png
index 88ac27f..a01871c 100644
Binary files a/gui/Images/characterize-button.png and b/gui/Images/characterize-button.png differ
diff --git a/gui/Images/characterize-button.svg b/gui/Images/characterize-button.svg
index 46db627..1f23b5c 100644
--- a/gui/Images/characterize-button.svg
+++ b/gui/Images/characterize-button.svg
@@ -14,11 +14,11 @@
    id="svg1307"
    sodipodi:version="0.32"
    inkscape:version="0.43"
-   sodipodi:docbase="/home/cas/svn/scyther/gui/images"
+   sodipodi:docbase="/home/cas/svn/scyther/gui/Images"
    sodipodi:docname="characterize-button.svg"
-   inkscape:export-filename="/home/cas/svn/scyther/gui/images/characterize-button.png"
-   inkscape:export-xdpi="90"
-   inkscape:export-ydpi="90">
+   inkscape:export-filename="/home/cas/svn/scyther/gui/Images/characterize-button.png"
+   inkscape:export-xdpi="45"
+   inkscape:export-ydpi="45">
   <defs
      id="defs1309">
     <linearGradient
@@ -105,8 +105,8 @@
      inkscape:pageshadow="2"
      inkscape:zoom="12.296875"
      inkscape:cx="32"
-     inkscape:cy="53.817265"
-     inkscape:current-layer="layer6"
+     inkscape:cy="25.734125"
+     inkscape:current-layer="layer3"
      showgrid="true"
      inkscape:document-units="px"
      inkscape:grid-bbox="true"
@@ -219,17 +219,6 @@
      id="layer3"
      inkscape:label="text"
      style="display:inline">
-    <text
-       xml:space="preserve"
-       style="font-size:13px;font-style:normal;font-variant:normal;font-weight:bold;font-stretch:normal;text-align:center;line-height:100%;writing-mode:lr-tb;text-anchor:middle;opacity:0.35353537;fill:#000000;fill-opacity:1;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;font-family:Monospace"
-       x="31.191406"
-       y="42.815918"
-       id="text4893"
-       sodipodi:linespacing="100%"><tspan
-         sodipodi:role="line"
-         id="tspan4895"
-         x="31.191406"
-         y="42.815918">REACH</tspan></text>
     <text
        xml:space="preserve"
        style="font-size:13px;font-style:normal;font-variant:normal;font-weight:bold;font-stretch:normal;text-align:center;line-height:100%;writing-mode:lr-tb;text-anchor:middle;fill:#000000;fill-opacity:1;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;font-family:Monospace"
diff --git a/gui/Images/verify-button.png b/gui/Images/verify-button.png
index 3b590a3..5f79b5b 100644
Binary files a/gui/Images/verify-button.png and b/gui/Images/verify-button.png differ
diff --git a/gui/Images/verify-button.svg b/gui/Images/verify-button.svg
index 116b6a8..58c01a6 100644
--- a/gui/Images/verify-button.svg
+++ b/gui/Images/verify-button.svg
@@ -14,11 +14,11 @@
    id="svg1307"
    sodipodi:version="0.32"
    inkscape:version="0.43"
-   sodipodi:docbase="/home/cas/svn/scyther/gui/images"
+   sodipodi:docbase="/home/cas/svn/scyther/gui/Images"
    sodipodi:docname="verify-button.svg"
-   inkscape:export-filename="/home/cas/svn/scyther/gui/images/verify-button.png"
-   inkscape:export-xdpi="90"
-   inkscape:export-ydpi="90">
+   inkscape:export-filename="/home/cas/svn/scyther/gui/Images/verify-button.png"
+   inkscape:export-xdpi="45"
+   inkscape:export-ydpi="45">
   <defs
      id="defs1309">
     <linearGradient
@@ -104,7 +104,7 @@
      inkscape:zoom="12.296875"
      inkscape:cx="32"
      inkscape:cy="41.18515"
-     inkscape:current-layer="layer7"
+     inkscape:current-layer="layer3"
      showgrid="true"
      inkscape:document-units="px"
      inkscape:grid-bbox="true"
@@ -218,19 +218,7 @@
      inkscape:groupmode="layer"
      id="layer3"
      inkscape:label="text"
-     style="display:inline"
-     sodipodi:insensitive="true">
-    <text
-       xml:space="preserve"
-       style="font-size:13px;font-style:normal;font-variant:normal;font-weight:bold;font-stretch:normal;text-align:center;line-height:100%;writing-mode:lr-tb;text-anchor:middle;opacity:0.35353537;fill:#000000;fill-opacity:1;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;font-family:Monospace"
-       x="31.191406"
-       y="38.815918"
-       id="text4893"
-       sodipodi:linespacing="100%"><tspan
-         sodipodi:role="line"
-         id="tspan4895"
-         x="31.191406"
-         y="38.815918">CLAIM</tspan></text>
+     style="display:inline">
     <text
        xml:space="preserve"
        style="font-size:13px;font-style:normal;font-variant:normal;font-weight:bold;font-stretch:normal;text-align:center;line-height:100%;writing-mode:lr-tb;text-anchor:middle;fill:#000000;fill-opacity:1;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;font-family:Monospace"