This chapter provides descriptions of each method and event that is understood by the parts supported by the VAST Composition Editor. Each section describes the protocols understood by a particular part class. For resource get and set protocols, only the set version of the protocol has been described. For each set protocol (e.g., #height:, #x:, #borderWidth:, etc.), there is a corresponding get protocol (e.g., #height, #x, #borderWidth, etc.).