tree d2bb0dfc8b7698bb300ead9a016feee6340352d1
parent 482f5f00a856c4ddd2315c3d1f4ae1d4a2a46c7d
author Gabriel Peal <gabriel.peal@airbnb.com> 1515792385 -0800
committer Gabriel Peal <gabriel.peal@airbnb.com> 1515792385 -0800

Default to MaskModeAdd but warn if another is set

With the new way Lottie handles masks, each type is handled explicitly.
The existing behavior defaulted to mask mode add so this restores
that behavior.