I assume it is the "Comfort" setting. Above the table there is a picture of a book with "i" on a page. Below the book is a picture of a tyre and what looks like a picture of a suspension arm. I think it is a pictorial attempt at indicating softer suspension characteristics because of the altered tyre pressure allowing more "give".
I found a picture of the tyre pressure
sticker for another SEAT line and it had the two words "Comfort" and "Komfort" instead of the "i".