我不确定我是否正确理解您的问题，因为机器翻译似乎无法正确翻译某些部分。
您是否在 straight alpha 工作流程中导出了骨架，在 Spine Export 中启用了 Bleed，在 Unity 的 Texture Importer 设置中启用了 sRGB Color Texture 和 Alpha is Transparency，如下所示：
spine-unity Runtime Documentation: Advanced Premultiplied vs Straight Alpha Import
还请在 Inspector 的 SkeletonAnimation 组件中禁用 Advanced - PMA Vertex Colors。
I'm not sure I understand your question correctly, as machine translation seems to have failed translating some parts properly.
Did you export your skeleton in straight alpha workflow, having Bleed enabled in Spine Export and sRGB Color Texture and Alpha is Transparency enabled in Unity's Texture Importer settings, as shown here:
spine-unity Runtime Documentation: Advanced Premultiplied vs Straight Alpha Import
Please also disable Advanced - PMA Vertex Colors at the SkeletonAnimation component in the Inspector.
