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.
Display a dialog relevant to the tuned in ATC service (if any)
ATC-dialog
- -->
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.
+
+ UnidirectionalTaper
+ Symbols/unidirectional.png
+
+ 0.92157
+ 0.92157
+ 0.76471
+ 1.0
+
+
+
+
+ BidirectionalTaper
+ Symbols/bidirectional.png
+
+ 0.92157
+ 0.92157
+ 0.76471
+ 1.0
+
+
+