3D Compositing with Action > Action: Masks >
Changing Display Properties

You can change the display properties of your mask in the Display tab.

Spline colour pot
  Displays the colour of mask splines.

Vertices colour pot
  When the mask is active, displays the colour of the unselected vertices.

Gradient colour pot
  When the gradient is active, displays the colour of the gradient spline.

Tangents Display option box
  Select to show all, selected or no tangents on any mask that is selected.