Constants: Shared pictures

Parent: $root.$constants

kSharedPicMode256Color	Set $sharedpictures to this value, to enable the use of 256 color shared picture format
kSharedPicModeNone	Set $sharedpictures to this value to disable the use of shared picture format
kSharedPicModeTrueColor	Set $sharedpictures to this value, to enable the use of true color shared picture format