The size of an object defined as a text item in a type tree:

An optional component retains its defined size when present; marking an item optional only controls whether its absence is permitted, not its size value.

Initiator, terminator, and release characters are delimiter properties configured separately on the item and are explicitly excluded from the size calculation, making this the opposite of the correct behavior.

The defined size of a text item in a type tree covers only the actual data payload; initiator, terminator, and release characters are structural delimiters defined separately on the item's properties and are not factored into the item's size field, allowing the map engine to correctly calculate data boundaries independent of surrounding delimiters.

Pad characters fill unused space within an already-defined fixed-length field and are already accounted for within the specified size, so they do not need to be separately counted when determining maximum size.