谢谢你用实际的图片分享你的情况。然而，我刚刚在我的终端上用Spineboy试了一下，它成功地进行了unpremultiply alpha，所以我想它应该能工作。
你所试的命令似乎是正确的，但如果我可以大胆地说，你所检查的文件夹是否有可能是不同的？如果没有这个可能，你能不能把纹理和纹理图集通过电子邮件发给我们，以便我们能重现这个问题？：contact@esotericsoftware.com
Thank you for sharing your situation with the actual images. However, I just tried it with Spineboy on my end and it successfully performed the unpremultiply alpha, so I think it should work.
The command you tried seems correct, but if I may be so bold, is it possible that the folders you are checking are different? If that is not a possibility, could you please email us the texture and the texture atlas so that we can reproduce the problem?: contact@esotericsoftware.com
谢谢你发送你的文件! 很抱歉我没有告诉你一个非常重要的问题。从4.0开始，图集（文本文件）中多了一行关于PMA的内容，如果没有这一行，Spine就不能确定纹理是否为PMA。因此，为了正确执行unpremply alpha，你需要在filter:下添加以下一行。
正确的状态将看起来像下面的屏幕截图。
我在你发给我们的图集中手动添加了这一行，并且能够正确解压纹理，所以请尝试上述方法。
Thank you for sending your files! I'm sorry I haven't told you a very important point. There is an additional line about pma in the atlas (text file) since 4.0, and Spine can not determine whether the texture was PMA or not without that line. Therefore, to correctly perform unpremultiply alpha, you need to add the following line under filter::
The correct state will look like the screenshot below:
I manually added this line to the atlas you sent us and was able to unpack the texture correctly, so please try the above.
