v3.0.0-alpha.4

• Add backgroundLoading parameter to Lottie.asset|network|file|memory.
  If backgroundLoading is true, the animation will be loaded in a background isolate.
  This is useful for large animations that can take a long time to parse and block the UI work.

• Replace enableRenderCache with renderCache: RenderCache.raster.
  The new class RenderCache allows to specify the cache behaviour:

  • RenderCache.raster: Cache the frames as rasterized images living in the GPU memory.
  • RenderCache.drawingCommands: Cache the frames as a list of graphical operations. This will only save CPU
    work but will use a lot less memory.