The color symbol to the left of each transaction signifies the status of each transaction before, during, and after it has played. The images below show what each of the colors represents. The black arrow to the left of a transaction indicates that this transaction is the current, or next in line to be played.

A step that has been played successfully has a green dot next to it.

A step that has been created but has not been played in the current state of the model is black.

A step that was attempted to be played but could not be completed successfully turns red, indicating the step that contains the error.

A black button with an impression indicates the step has been executed and is being computed.

A grayed out transaction indicates that the transaction has been suppressed and will be skipped when playing through the transaction file.