Since noops are used for multiple different functions from Begin or Start statements to End statements it would be helpful to have some type of selectable iconography to go along with the function that is being used in that noop.
A white play button on green for a Start/Begin noop
A white octagon on red for an End noop
An inverted white trident (Or even better a chicken's foot) to resemble a noop that's used for branching or filtering