// Each line is a separate usage. // Blank lines are allowed. // Usages may have spaces in their names. // Leading and trailing spaces on a line get ignored. // The order is the order in which things appear in Radiant. // is used to add a separator line in Radiant. case tools door floor ceiling roof interior wall interior trim exterior wall exterior trim window poster sign core damage trench fence background foliage ground liquid road rock sky barrel crate