Opening the Frame Stack
Now I click the Save button, and an Open Frame Stack box appears. There are options for the number of Onion Skin layers visible and the colour depth or Storage Type of the movie. I change the Storage Type to 15-bit colour with 1-bit alpha, which reduces the size of the movie. I click OK and my movie is automatically painted.
Previewing the movie
Once my movie has finished painting, the Frame Stacks box shows me how many frames have been created and gives me the option to play the movie back at a different frame rate. I go to the File menu at the top of Painter and choose Save As...