diff --git a/app/src/main/res/drawable/axle_down.png b/app/src/main/res/drawable/axle_down.png
new file mode 100644
index 0000000..d0862fc
Binary files /dev/null and b/app/src/main/res/drawable/axle_down.png differ
diff --git a/app/src/main/res/drawable/axle_up.png b/app/src/main/res/drawable/axle_up.png
new file mode 100644
index 0000000..8b04eeb
Binary files /dev/null and b/app/src/main/res/drawable/axle_up.png differ
diff --git a/app/src/main/res/drawable/load_sharing_ratio.png b/app/src/main/res/drawable/load_sharing_ratio.png
new file mode 100644
index 0000000..3737b10
Binary files /dev/null and b/app/src/main/res/drawable/load_sharing_ratio.png differ