Creating Animation > Representations of animations in the Timeline

Representations of animations in the Timeline

Flash distinguishes tweened animation from frame-by-frame animation in the Timeline as follows:

Motion-tweened keyframes are indicated by a black dot and intermediate tweened frames have a black arrow with a light blue background.
Shape-tweened keyframes are indicated by a black dot and intermediate frames have a black arrow with a light green background.
A dashed line indicates that the final keyframe is missing.
A single keyframe is indicated by a black dot. Light-gray frames after a single keyframe contain the same content with no changes and have a black line with a hollow rectangle at the last frame of the span.
A small a indicates that the frame has been assigned a frame action with the Actions panel.
A red flag indicates that the frame contains a label or comment.