This file scales thieving abilities as a percentage. A value of 300 would mean any point invested in a skill would actually mean 3 points when used in the game. A value of 0 disables the skill for the class/kit. By default these are all 100 or 0 to enable or disable thieving skills.

In PSTEE we have:

2DA V1.0
0
                    FIGHTER_THIEF   THIEF
PICK_POCKETS        100             100
OPEN_LOCKS          100             100
FIND_TRAPS          100             100
MOVE_SILENTLY       100             100
HIDE_IN_SHADOWS     100             100
DETECT_ILLUSION     100             100
SET_TRAPS           100             100
STEALTH             0               0