Regarding showing items on mini-map

[Purdypog]

Hi all, first post but long time reader of these forums. I am proficient enough now at this wonderful game to go to higher difficulties, but I miss having the small yellow dots on the minimap indicating "treasure". It is so easy to miss things without it. Evidently this feature is removed when you go over the normal difficulty.

My question is where I could go in the files to allow the viewing of the treasure on hard and impossible modes.

Thanks much in advance.