Update overlay.py

overlay.py

@@ -36,8 +36,8 @@ def process(img,font_text,font_fac,font_x,font_y,font_col,font_op):
     #txt.putalpha(128)
 
     combined = Image.alpha_composite(im, txt)    
-
-    return combined
+    combined.save("combined.png")
+    return "combined.png"
 
 def textover(im,txt):
     #im.save('tmp.png')