diff --git a/docs/development/02biochromes.md b/docs/development/02biochromes.md
index 2246cfa17e03d85551d0ec957569ad6c45b6e705..bc6c21eef43791f7b3cd8ce4354d3df63e7f2b8e 100644
--- a/docs/development/02biochromes.md
+++ b/docs/development/02biochromes.md
@@ -42,6 +42,8 @@
 
 **PURPLE TULIPS**
 
+![flowers](../images/biochromes/ptd.jpg){ width=1000 }
+
 ![flowers](../images/biochromes/PT.jpg){ width=1000 }
 
 **TULIP LEAVES**
diff --git a/docs/images/biochromes/ptd.jpg b/docs/images/biochromes/ptd.jpg
new file mode 100644
index 0000000000000000000000000000000000000000..bf513acc8345eb6a22ad9a6e411bfe7ef83e007a
Binary files /dev/null and b/docs/images/biochromes/ptd.jpg differ