How to stop the black outline in Animation Shop
After you have done your animation you go to save or save as and the optimization wizard comes up once you have added the filename you want to save it as. Click on customize, but first make sure use these settings when saving optimized file is unticked.
once in the customized option click on the partial transparency tab and make sure use error diffusion dither is selected and no,use the existing image colour at 100% opacity is selected.
Then click ok, then next, next next, then finish and there you have it
Voila no black edge on your text or picture