TS2icon takes an expansion pack abbreviation or number and turns it into an icon. This is meant to be used for sortable tables for sorting chronologically.
TS2icon/icon - Turns an abbreviation into an icon filename.
TS2icon/pack - Turns a chronological release number into an abbreviation.
TS2icon/sort - When used on a table, sorts the rows in the order of the following: base game, expansion pack (by release), stuff pack (by release), and store.