diff --git a/manual/images/hazard-barrels.png b/manual/images/hazard-barrels.png
index 4137e2f4..2aa84105 100644
Binary files a/manual/images/hazard-barrels.png and b/manual/images/hazard-barrels.png differ
diff --git a/manual/images/monster-minigun-zombie.png b/manual/images/monster-minigun-zombie.png
index e2eebfb0..6b4b3437 100644
Binary files a/manual/images/monster-minigun-zombie.png and b/manual/images/monster-minigun-zombie.png differ
diff --git a/manual/images/monster-technospider.png b/manual/images/monster-technospider.png
index 19145ab1..9ba940e6 100644
Binary files a/manual/images/monster-technospider.png and b/manual/images/monster-technospider.png differ