diff --git a/joss-paper/fig_2.png b/joss-paper/fig_2.png
index eecd8d2..999bfe3 100644
Binary files a/joss-paper/fig_2.png and b/joss-paper/fig_2.png differ
diff --git a/joss-paper/paper.md b/joss-paper/paper.md
index db46098..e043966 100644
--- a/joss-paper/paper.md
+++ b/joss-paper/paper.md
@@ -137,7 +137,7 @@ results = protocol.run(
     duration=4000)
 ```
 
-![Half-cycle capacities (left) and temporal evolution of reservoir states-of-charge (right) are readily accessed. Symmetric cell starts with both reservoirs at 50% state-of-charge (blue circle).](./fig_2.png)
+![Half-cycle capacities (left) and temporal evolution of reservoir states-of-charge (right) are readily accessed. Symmetric cell starts with both reservoirs at 50% state-of-charge (purple circle).](./fig_2.png)
 
 
 # Acknowledgements