Bounding box color.

I have seen three different bounding boxes when in animate mode and when the transform is on.
Yellow, Red, and Fuchsia. I have not found the documentation on what each color means.

To help direct the discussion, I will share some observations.

Case 1:

Drawing layer at top level (i.e. not under a peg) has two cases:
Animate Using Animation Tools ON: fuchsia
Animate Using Animation Tools OFF: no bounding box

Case 2:

Drawing_2-P (Peg): yellow
|
±—> “Drawing_2” layer under a peg (Animate Using Animation Tools OFF): fucshia

Case 3:

Drawing-P: yellow
|
±—> “Drawing_1” layer under a peg (Animate Using Animation Tools OFF): fucshia
±—> “Drawing” layer under a peg (Animate Using Animation Tools OFF): yellow

Case 4:

Drawing-P-P: red
Drawing-P: yellow
|
±—> “Drawing_1” layer under a peg (Animate Using Animation Tools OFF): fucshia
±—> “Drawing” layer under a peg (Animate Using Animation Tools OFF): yellow