diff --git a/games/devtest/mods/callbacks/textures/callbacks_callback_entity.png b/games/devtest/mods/callbacks/textures/callbacks_callback_entity.png
index c4c9066d1..5125cc6c9 100644
Binary files a/games/devtest/mods/callbacks/textures/callbacks_callback_entity.png and b/games/devtest/mods/callbacks/textures/callbacks_callback_entity.png differ
diff --git a/games/devtest/mods/callbacks/textures/callbacks_callback_entity_step.png b/games/devtest/mods/callbacks/textures/callbacks_callback_entity_step.png
index b67506a97..7676150a8 100644
Binary files a/games/devtest/mods/callbacks/textures/callbacks_callback_entity_step.png and b/games/devtest/mods/callbacks/textures/callbacks_callback_entity_step.png differ
diff --git a/games/devtest/mods/callbacks/textures/callbacks_callback_item_1.png b/games/devtest/mods/callbacks/textures/callbacks_callback_item_1.png
index 92cbc1be3..44841236f 100644
Binary files a/games/devtest/mods/callbacks/textures/callbacks_callback_item_1.png and b/games/devtest/mods/callbacks/textures/callbacks_callback_item_1.png differ
diff --git a/games/devtest/mods/callbacks/textures/callbacks_callback_item_2.png b/games/devtest/mods/callbacks/textures/callbacks_callback_item_2.png
index 85732af7c..f4098c692 100644
Binary files a/games/devtest/mods/callbacks/textures/callbacks_callback_item_2.png and b/games/devtest/mods/callbacks/textures/callbacks_callback_item_2.png differ
diff --git a/games/devtest/mods/testtools/textures/testtools_particle_spawner.png b/games/devtest/mods/testtools/textures/testtools_particle_spawner.png
index 5df416a58..5bd276b61 100644
Binary files a/games/devtest/mods/testtools/textures/testtools_particle_spawner.png and b/games/devtest/mods/testtools/textures/testtools_particle_spawner.png differ
diff --git a/games/devtest/mods/unittests/entity.lua b/games/devtest/mods/unittests/entity.lua
index 68635cad7..565dd6adf 100644
--- a/games/devtest/mods/unittests/entity.lua
+++ b/games/devtest/mods/unittests/entity.lua
@@ -15,7 +15,7 @@ core.register_entity("unittests:callbacks", {
 	initial_properties = {
 		hp_max = 5,
 		visual = "upright_sprite",
-		textures = { "unittests_stick.png" },
+		textures = { "unittests_callback.png" },
 		static_save = false,
 	},
 
diff --git a/games/devtest/mods/unittests/textures/unittests_callback.png b/games/devtest/mods/unittests/textures/unittests_callback.png
new file mode 100644
index 000000000..3c80fdc0d
Binary files /dev/null and b/games/devtest/mods/unittests/textures/unittests_callback.png differ