Per-account assets that has been composed into LP, thus yields:
transaction-fee of corresponding trading pair. (undisplayed on UI)
SIL emission.
Per-account assets that is pending to be composed, thus yields:
SIL emission.
Due to LP composition(A/B assets value matching), one side of tokens will usually(unless A/B assets in the pool coincidentally have the same value at composition time) have leftovers, which creates an immediate gap on the other side. This column represents the immediate gap at pool level.