diff --git a/Textures/Symbols/bidirectional.png b/Textures/Symbols/bidirectional.png
new file mode 100644
index 000000000..d30497baf
Binary files /dev/null and b/Textures/Symbols/bidirectional.png differ
diff --git a/Textures/Symbols/unidirectional.png b/Textures/Symbols/unidirectional.png
new file mode 100644
index 000000000..fb67e0c63
Binary files /dev/null and b/Textures/Symbols/unidirectional.png differ
diff --git a/keyboard.xml b/keyboard.xml
index c2c3d3e28..108de0c63 100644
--- a/keyboard.xml
+++ b/keyboard.xml
@@ -338,9 +338,8 @@ top down before the key bindings are parsed.
   <desc>Display a dialog relevant to the tuned in ATC service (if any)</desc>
   <binding>
     <!-- At the moment, we have no working interactive ATC, so this is
-         disabled for v2.2.0.
+         disabled for v2.2.0. -->
     <command>ATC-dialog</command>
-    -->
   </binding>
  </key>
 
diff --git a/materials.xml b/materials.xml
index baa05b8eb..8de89e31d 100644
--- a/materials.xml
+++ b/materials.xml
@@ -3203,4 +3203,26 @@ Shared parameters for various materials.
   </emissive>
  </material>
 
+ <material>
+     <name>UnidirectionalTaper</name>
+     <texture>Symbols/unidirectional.png</texture>
+     <emissive>
+         <r>0.92157</r>
+         <g>0.92157</g>
+         <b>0.76471</b>
+         <a>1.0</a>
+     </emissive>
+ </material>
+
+ <material>
+     <name>BidirectionalTaper</name>
+     <texture>Symbols/bidirectional.png</texture>
+     <emissive>
+         <r>0.92157</r>
+         <g>0.92157</g>
+         <b>0.76471</b>
+         <a>1.0</a>
+     </emissive>
+ </material>
+
 </PropertyList>