Shall be centered now?

demo.lua

@@ -50,8 +50,9 @@ for i = 1, 12, 1 do
     end
   end
 
-  file:write("}\ndraw(", 192 - image_infos.width, ",", 96 - image_infos.height)
-  file:write(",data,pallet,", image_infos.width, ")")
+  file:write("}\ndraw(", math.floor(192 - image_infos.width / 2), ",")
+  file:write(math.floor(96 - image_infos.height / 2), ",data,pallet,")
+  file:write(image_infos.width, ")")
 end
 
 file:close()

draw.py

@@ -1,9 +1,7 @@
 from casioplot import set_pixel as S
 from casioplot import show_screen as R
 
-def draw(data, pallet, width):
-    x = 0
-    y = 0
+def draw(x, y, data, pallet, width):
     for v in data:
         S(x, y, pallet[v])
         x += 1