Variable sizeStealthMods`Const`

sizeStealthMods: {
    col: -16;
    dim: 12;
    fine: 16;
    grg: -12;
    huge: -8;
    lg: -4;
    med: 0;
    sm: 4;
    tiny: 8;
} = ...

The size modifier applied to stealth checks of creatures not of medium size