Overlays slots by country:
2XXX England, Rest of World, Ireland, International, Scotland;
3XXX France, Netherland, Norway, Russia;
4XXX Switzerland, Germany, Poland, Austria, Denmark;
5XXX Sweden, Australia, Italy, Mexico, Portugal, Saud Arabia;
6XXX Spain, Belgium, Turkey, Romania;
7XXX USA, Argentina, Brasil, Chille, Columbia, UCL, UEL, USC;
8XXX EASPN Scoreboard;
9XXX friendly match (not sure at 100%).
Overlays number meaning:
overlay_x002.big =scoreboard
overlay_x003.big =penalty shoot-out
overlay_x012.big =scorer
overlay_x013.big =yellow/red card
overlay_x015.big = scorers (after a goal and after 1st and 2nd half)
overlay_x018.big =lineup and formation
overlay_x020.big = referee
overlay_x021.big =subs
overlay_x042.big =match intro
overlay_x044.big =commentary
overlay_x045.big =table
overlay_x072.big =stats(yellow/red card)
overlay_x073.big = stats(subs)
overlay_x074.big = stats( general)
overlay_x094.big = don't know. I don't use it.