diff --git a/ironmetabolism/navigationleft.gif b/ironmetabolism/navigationleft.gif
new file mode 100644
index 00000000..010b4cac
Binary files /dev/null and b/ironmetabolism/navigationleft.gif differ
diff --git a/ironmetabolism/simulatorstartstop.gif b/ironmetabolism/simulatorstartstop.gif
new file mode 100644
index 00000000..5478d044
Binary files /dev/null and b/ironmetabolism/simulatorstartstop.gif differ