CONFIG PICTURE CACHE_ON | CACHE_OFF
CONFIG PICTURE CACHE_ON or CONFIG PICTURE CACHE_OFF are the only valid PICTURE config statements. Any other values or no values will be rejected.
CACHE_ON means that any pictures referenced on the client will be locally cached according to their file name.
If CACHE_OFF is in effect, all picture references are freshly retrieved from the server even if they happen to exist on the client (@: reference). This is something that has objected to and is on the list to correct.
Client picture caching defaults to ON.
For disambiguation, see Picture.