The latest version of 2DToolkit (2.3) has a feature that is fairly critical for us known as "PNG Atlases". In the Sprite Collection Editor, you can now set the "Atlas Format" to either "PNG" or "Unity Texture." The new "PNG" option results in texture atlases being stored as TextAsset data files that are loaded into Texture2D objects at runtime. This prevents against the massive package size bloat that results from Unity's normal treatment of imported PNG textures, which is to decompress them before packaging them up.

For a game like ours, which is very content-heavy, we have to use the PNG Atlas approach, since Unity (unfortunately) doesn't solve this problem natively.

Long story short - PNG Atlases and Spine don't work together. If I compile a sprite collection with PNG Atlas turned on, I get a bunch of gray boxes where my Spine skeleton parts should be (see attached). Looking at the Inspector, it seems like the material fails to reference the right texture... and I'm not familiar enough with how either Spine or tk2d work to get these stars properly aligned.

Any chance of having this looked at by Spine folks?

Thanks!
David